51630515244615 has 32 divisors (see below), whose sum is σ = 82930469760000. Its totient is φ = 27429125077760.

The previous prime is 51630515244611. The next prime is 51630515244691. The reversal of 51630515244615 is 51644251503615.

It is not a de Polignac number, because 51630515244615 - 2² = 51630515244611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51630515244611) 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, 10598566 + ... + 14683004.

It is an arithmetic number, because the mean of its divisors is an integer number (2591577180000).

Almost surely, 2^{51630515244615} is an apocalyptic number.

51630515244615 is a deficient number, since it is larger than the sum of its proper divisors (31299954515385).

51630515244615 is a wasteful number, since it uses less digits than its factorization.

51630515244615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087727.

The product of its (nonzero) digits is 2160000, while the sum is 48.

The spelling of 51630515244615 in words is "fifty-one trillion, six hundred thirty billion, five hundred fifteen million, two hundred forty-four thousand, six hundred fifteen".