51042972534 has 8 divisors (see below), whose sum is σ = 102085945080. Its totient is φ = 17014324176.

The previous prime is 51042972517. The next prime is 51042972569. The reversal of 51042972534 is 43527924015.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

51042972534 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4253581039 + ... + 4253581050.

It is an arithmetic number, because the mean of its divisors is an integer number (12760743135).

Almost surely, 2^51042972534 is an apocalyptic number.

51042972534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51042972534 is a wasteful number, since it uses less digits than its factorization.

51042972534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8507162094.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 51042972534 in words is "fifty-one billion, forty-two million, nine hundred seventy-two thousand, five hundred thirty-four".