51263458511 has 8 divisors (see below), whose sum is σ = 51801435840. Its totient is φ = 50725675008.

The previous prime is 51263458489. The next prime is 51263458513. The reversal of 51263458511 is 11585436215.

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

It is a cyclic number.

It is not a de Polignac number, because 51263458511 - 2²⁶ = 51196349647 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 (51263458513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517775 + ... + 608783.

It is an arithmetic number, because the mean of its divisors is an integer number (6475179480).

Almost surely, 2^51263458511 is an apocalyptic number.

51263458511 is a deficient number, since it is larger than the sum of its proper divisors (537977329).

51263458511 is an equidigital number, since it uses as much as digits as its factorization.

51263458511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96913.

The product of its digits is 144000, while the sum is 41.

The spelling of 51263458511 in words is "fifty-one billion, two hundred sixty-three million, four hundred fifty-eight thousand, five hundred eleven".