51244644215 has 16 divisors (see below), whose sum is σ = 62118856800. Its totient is φ = 40579075200.

The previous prime is 51244644167. The next prime is 51244644223.

51244644215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51244644215 - 2²⁰ = 51243595639 is a prime.

It is a congruent number.

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, 2286092 + ... + 2308398.

It is an arithmetic number, because the mean of its divisors is an integer number (3882428550).

Almost surely, 2^51244644215 is an apocalyptic number.

51244644215 is a deficient number, since it is larger than the sum of its proper divisors (10874212585).

51244644215 is a wasteful number, since it uses less digits than its factorization.

51244644215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26962.

The product of its digits is 153600, while the sum is 38.

The spelling of 51244644215 in words is "fifty-one billion, two hundred forty-four million, six hundred forty-four thousand, two hundred fifteen".