50737639680 has 1728 divisors, whose sum is σ = 239153886720. Its totient is φ = 9937354752.

The previous prime is 50737639657. The next prime is 50737639699. The reversal of 50737639680 is 8693673705.

50737639680 is a `hidden beast` number, since 507 + 3 + 76 + 3 + 9 + 68 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 695036124 + ... + 695036196.

It is an arithmetic number, because the mean of its divisors is an integer number (138399240).

Almost surely, 2^50737639680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50737639680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119576943360).

50737639680 is an abundant number, since it is smaller than the sum of its proper divisors (188416247040).

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

50737639680 is a wasteful number, since it uses less digits than its factorization.

50737639680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 54.

The spelling of 50737639680 in words is "fifty billion, seven hundred thirty-seven million, six hundred thirty-nine thousand, six hundred eighty".