51204623111 has 16 divisors (see below), whose sum is σ = 53935342560. Its totient is φ = 48541153920.

The previous prime is 51204623087. The next prime is 51204623159. The reversal of 51204623111 is 11132640215.

It is a cyclic number.

It is not a de Polignac number, because 51204623111 - 2¹⁸ = 51204360967 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 (51204623191) 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, 970241 + ... + 1021653.

It is an arithmetic number, because the mean of its divisors is an integer number (3370958910).

Almost surely, 2^51204623111 is an apocalyptic number.

51204623111 is a deficient number, since it is larger than the sum of its proper divisors (2730719449).

51204623111 is a wasteful number, since it uses less digits than its factorization.

51204623111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52066.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 51204623111 in words is "fifty-one billion, two hundred four million, six hundred twenty-three thousand, one hundred eleven".