51676630515 has 48 divisors (see below), whose sum is σ = 97047501408. Its totient is φ = 25336378368.

The previous prime is 51676630469. The next prime is 51676630517. The reversal of 51676630515 is 51503667615.

51676630515 is a `hidden beast` number, since 5 + 1 + 6 + 7 + 6 + 630 + 5 + 1 + 5 = 666.

It is not a de Polignac number, because 51676630515 - 2⁶ = 51676630451 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 (51676630517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 752584 + ... + 818373.

It is an arithmetic number, because the mean of its divisors is an integer number (2021822946).

Almost surely, 2^51676630515 is an apocalyptic number.

51676630515 is a deficient number, since it is larger than the sum of its proper divisors (45370870893).

51676630515 is a wasteful number, since it uses less digits than its factorization.

51676630515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571028 (or 1571025 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 51676630515 in words is "fifty-one billion, six hundred seventy-six million, six hundred thirty thousand, five hundred fifteen".