51010074464 has 24 divisors (see below), whose sum is σ = 100434594960. Its totient is φ = 25502875776.

The previous prime is 51010074433. The next prime is 51010074487. The reversal of 51010074464 is 46447001015.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 51010074464.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357002 + ... + 479030.

It is an arithmetic number, because the mean of its divisors is an integer number (4184774790).

Almost surely, 2^51010074464 is an apocalyptic number.

It is an amenable number.

51010074464 is a deficient number, since it is larger than the sum of its proper divisors (49424520496).

51010074464 is a wasteful number, since it uses less digits than its factorization.

51010074464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135102 (or 135094 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

Adding to 51010074464 its reverse (46447001015), we get a palindrome (97457075479).

The spelling of 51010074464 in words is "fifty-one billion, ten million, seventy-four thousand, four hundred sixty-four".