51340510515 has 32 divisors (see below), whose sum is σ = 93918781440. Its totient is φ = 23460200064.

The previous prime is 51340510477. The next prime is 51340510519. The reversal of 51340510515 is 51501504315.

It is not a de Polignac number, because 51340510515 - 2¹⁹ = 51339986227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51340510519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155566 + ... + 356204.

It is an arithmetic number, because the mean of its divisors is an integer number (2934961920).

Almost surely, 2^51340510515 is an apocalyptic number.

51340510515 is a deficient number, since it is larger than the sum of its proper divisors (42578270925).

51340510515 is a wasteful number, since it uses less digits than its factorization.

51340510515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203091.

The product of its (nonzero) digits is 7500, while the sum is 30.

The spelling of 51340510515 in words is "fifty-one billion, three hundred forty million, five hundred ten thousand, five hundred fifteen".