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51374347465057 = 1729292735602187
BaseRepresentation
bin10111010111001100001011…
…01110110011000101100001
320201220100011121101021010221
423223212011232303011201
523213204130422340212
6301133014401123041
713551450136214431
oct1353460556630541
9221810147337127
1051374347465057
11154078138aa181
125918839029481
132288770862896
14c98762d2a2c1
155e1570ba3807
hex2eb985bb3161

51374347465057 has 16 divisors (see below), whose sum is σ = 56291331490560. Its totient is φ = 46669054313728.

The previous prime is 51374347465013. The next prime is 51374347465081. The reversal of 51374347465057 is 75056474347315.

It is a cyclic number.

It is not a de Polignac number, because 51374347465057 - 243 = 42578254442849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51374347464986 and 51374347465004.

It is not an unprimeable number, because it can be changed into a prime (51374347465097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16358083 + ... + 19244104.

It is an arithmetic number, because the mean of its divisors is an integer number (3518208218160).

Almost surely, 251374347465057 is an apocalyptic number.

It is an amenable number.

51374347465057 is a deficient number, since it is larger than the sum of its proper divisors (4916984025503).

51374347465057 is a wasteful number, since it uses less digits than its factorization.

51374347465057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35605160.

The product of its (nonzero) digits is 148176000, while the sum is 61.

The spelling of 51374347465057 in words is "fifty-one trillion, three hundred seventy-four billion, three hundred forty-seven million, four hundred sixty-five thousand, fifty-seven".

Divisors: 1 17 29 493 2927 49759 84883 1443011 35602187 605237179 1032463423 17551878191 104207601349 1771529222933 3022020439121 51374347465057