51453873315 has 96 divisors (see below), whose sum is σ = 101452775424. Its totient is φ = 23943548160.

The previous prime is 51453873269. The next prime is 51453873319. The reversal of 51453873315 is 51337835415.

51453873315 is a `hidden beast` number, since 5 + 14 + 538 + 73 + 31 + 5 = 666.

It is not a de Polignac number, because 51453873315 - 2⁷ = 51453873187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (51453873319) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 746814 + ... + 812796.

It is an arithmetic number, because the mean of its divisors is an integer number (1056799744).

Almost surely, 2^51453873315 is an apocalyptic number.

51453873315 is a deficient number, since it is larger than the sum of its proper divisors (49998902109).

51453873315 is a wasteful number, since it uses less digits than its factorization.

51453873315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66081 (or 66078 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The spelling of 51453873315 in words is "fifty-one billion, four hundred fifty-three million, eight hundred seventy-three thousand, three hundred fifteen".