51377638880 has 48 divisors (see below), whose sum is σ = 125565189120. Its totient is φ = 19842396672.

The previous prime is 51377638831. The next prime is 51377638903. The reversal of 51377638880 is 8883677315.

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 7 ways as a sum of consecutive naturals, for example, 5531744 + ... + 5541023.

It is an arithmetic number, because the mean of its divisors is an integer number (2615941440).

Almost surely, 2^51377638880 is an apocalyptic number.

It is an amenable number.

51377638880 is an abundant number, since it is smaller than the sum of its proper divisors (74187550240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51377638880 is a wasteful number, since it uses less digits than its factorization.

51377638880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11072811 (or 11072803 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 56.

The spelling of 51377638880 in words is "fifty-one billion, three hundred seventy-seven million, six hundred thirty-eight thousand, eight hundred eighty".