51005651234 has 64 divisors (see below), whose sum is σ = 82724447232. Its totient is φ = 23548761600.

The previous prime is 51005651219. The next prime is 51005651309. The reversal of 51005651234 is 43215650015.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51005651234.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14500844 + ... + 14504360.

It is an arithmetic number, because the mean of its divisors is an integer number (1292569488).

Almost surely, 2^51005651234 is an apocalyptic number.

51005651234 is a deficient number, since it is larger than the sum of its proper divisors (31718795998).

51005651234 is a wasteful number, since it uses less digits than its factorization.

51005651234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3731.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 51005651234 in words is "fifty-one billion, five million, six hundred fifty-one thousand, two hundred thirty-four".