51642424615 has 24 divisors (see below), whose sum is σ = 64081435824. Its totient is φ = 39951907200.

The previous prime is 51642424609. The next prime is 51642424643.

51642424615 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51642424615 - 2¹⁷ = 51642293543 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8420100 + ... + 8426230.

It is an arithmetic number, because the mean of its divisors is an integer number (2670059826).

Almost surely, 2^51642424615 is an apocalyptic number.

51642424615 is a deficient number, since it is larger than the sum of its proper divisors (12439011209).

51642424615 is a wasteful number, since it uses less digits than its factorization.

51642424615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7951 (or 7920 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The spelling of 51642424615 in words is "fifty-one billion, six hundred forty-two million, four hundred twenty-four thousand, six hundred fifteen".