50911631505792 has 512 divisors, whose sum is σ = 159863592729600. Its totient is φ = 15915237212160.

The previous prime is 50911631505737. The next prime is 50911631505851. The reversal of 50911631505792 is 29750513611905.

It is a happy number.

50911631505792 is a `hidden beast` number, since 5 + 0 + 9 + 1 + 1 + 63 + 1 + 5 + 0 + 579 + 2 = 666.

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 63 ways as a sum of consecutive naturals, for example, 7629493368 + ... + 7629500040.

It is an arithmetic number, because the mean of its divisors is an integer number (312233579550).

Almost surely, 2^{50911631505792} 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 50911631505792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79931796364800).

50911631505792 is an abundant number, since it is smaller than the sum of its proper divisors (108951961223808).

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

50911631505792 is a wasteful number, since it uses less digits than its factorization.

50911631505792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8583 (or 8565 counting only the distinct ones).

The product of its (nonzero) digits is 2551500, while the sum is 54.

The spelling of 50911631505792 in words is "fifty trillion, nine hundred eleven billion, six hundred thirty-one million, five hundred five thousand, seven hundred ninety-two".