51602054464 has 28 divisors (see below), whose sum is σ = 102449458804. Its totient is φ = 25788017664.

The previous prime is 51602054461. The next prime is 51602054489. The reversal of 51602054464 is 46445020615.

It can be written as a sum of positive squares in 2 ways, for example, as 45454240000 + 6147814464 = 213200^2 + 78408^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51602054461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74727 + ... + 329830.

It is an arithmetic number, because the mean of its divisors is an integer number (3658909243).

Almost surely, 2^51602054464 is an apocalyptic number.

It is an amenable number.

51602054464 is a deficient number, since it is larger than the sum of its proper divisors (50847404340).

51602054464 is a wasteful number, since it uses less digits than its factorization.

51602054464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406562 (or 406552 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The spelling of 51602054464 in words is "fifty-one billion, six hundred two million, fifty-four thousand, four hundred sixty-four".