51614951615 has 16 divisors (see below), whose sum is σ = 62326817280. Its totient is φ = 41033029920.

The previous prime is 51614951587. The next prime is 51614951669. The reversal of 51614951615 is 51615941615.

It is not a de Polignac number, because 51614951615 - 2¹⁶ = 51614886079 is a prime.

It is a super-2 number, since 2×51614951615² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1333262 + ... + 1371428.

It is an arithmetic number, because the mean of its divisors is an integer number (3895426080).

Almost surely, 2^51614951615 is an apocalyptic number.

51614951615 is a deficient number, since it is larger than the sum of its proper divisors (10711865665).

51614951615 is a wasteful number, since it uses less digits than its factorization.

51614951615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39862.

The product of its digits is 162000, while the sum is 44.

The spelling of 51614951615 in words is "fifty-one billion, six hundred fourteen million, nine hundred fifty-one thousand, six hundred fifteen".