51457065267 has 54 divisors (see below), whose sum is σ = 74274256836. Its totient is φ = 31683536640.

The previous prime is 51457065239. The next prime is 51457065287. The reversal of 51457065267 is 76256075415.

51457065267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51457065267 - 2¹⁴ = 51457048883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51457065287) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 455372203 + ... + 455372315.

Almost surely, 2^51457065267 is an apocalyptic number.

51457065267 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

51457065267 is a deficient number, since it is larger than the sum of its proper divisors (22817191569).

51457065267 is an equidigital number, since it uses as much as digits as its factorization.

51457065267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 48.

Multiplying 51457065267 by its sum of digits (48), we get a square (2469939132816 = 1571604²).

The spelling of 51457065267 in words is "fifty-one billion, four hundred fifty-seven million, sixty-five thousand, two hundred sixty-seven".