51430665046 has 16 divisors (see below), whose sum is σ = 81705515184. Its totient is φ = 24196290304.

The previous prime is 51430665037. The next prime is 51430665073. The reversal of 51430665046 is 64056603415.

It is a super-2 number, since 2×51430665046² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67000 + ... + 327643.

It is an arithmetic number, because the mean of its divisors is an integer number (5106594699).

Almost surely, 2^51430665046 is an apocalyptic number.

51430665046 is a deficient number, since it is larger than the sum of its proper divisors (30274850138).

51430665046 is a wasteful number, since it uses less digits than its factorization.

51430665046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398495.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 51430665046 in words is "fifty-one billion, four hundred thirty million, six hundred sixty-five thousand, forty-six".