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2792121343687 = 138322871113143
BaseRepresentation
bin101000101000010111011…
…001101001111011000111
3100212220221201220101022001
4220220113121221323013
5331221231030444222
65534403254250131
7405503240555434
oct50502731517307
910786851811261
102792121343687
1198714a787475
1239116b956947
131733b0175320
14991d46d6b8b
154c969792e27
hex28a17669ec7

2792121343687 has 16 divisors (see below), whose sum is σ = 3043287571968. Its totient is φ = 2546156619360.

The previous prime is 2792121343637. The next prime is 2792121343751. The reversal of 2792121343687 is 7863431212972.

It is a cyclic number.

It is not a de Polignac number, because 2792121343687 - 227 = 2791987125959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2792121343637) 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, 24621238 + ... + 24734380.

It is an arithmetic number, because the mean of its divisors is an integer number (190205473248).

Almost surely, 22792121343687 is an apocalyptic number.

2792121343687 is a deficient number, since it is larger than the sum of its proper divisors (251166228281).

2792121343687 is a wasteful number, since it uses less digits than its factorization.

2792121343687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136110.

The product of its digits is 6096384, while the sum is 55.

The spelling of 2792121343687 in words is "two trillion, seven hundred ninety-two billion, one hundred twenty-one million, three hundred forty-three thousand, six hundred eighty-seven".

Divisors: 1 13 83 1079 22871 113143 297323 1470859 1898293 9390869 24677809 122081297 2587693553 33640016189 214778564899 2792121343687