51465387612576 has 96 divisors (see below), whose sum is σ = 155320691097600. Its totient is φ = 14616346150656.

The previous prime is 51465387612503. The next prime is 51465387612593. The reversal of 51465387612576 is 67521678356415.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×51465387612576² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229185376 + ... + 229409823.

It is an arithmetic number, because the mean of its divisors is an integer number (1617923865600).

Almost surely, 2^{51465387612576} is an apocalyptic number.

51465387612576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51465387612576 is an abundant number, since it is smaller than the sum of its proper divisors (103855303485024).

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

51465387612576 is a wasteful number, since it uses less digits than its factorization.

51465387612576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458595386 (or 458595378 counting only the distinct ones).

The product of its digits is 254016000, while the sum is 66.

The spelling of 51465387612576 in words is "fifty-one trillion, four hundred sixty-five billion, three hundred eighty-seven million, six hundred twelve thousand, five hundred seventy-six".