50815979776 has 81 divisors (see below), whose sum is σ = 103377614319. Its totient is φ = 24930091008.

The previous prime is 50815979759. The next prime is 50815979791. The reversal of 50815979776 is 67797951805.

The square root of 50815979776 is 225424.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2063339776 + 48752640000 = 45424^2 + 220800^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 263295136 + ... + 263295328.

Almost surely, 2^50815979776 is an apocalyptic number.

50815979776 is the 225424-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50815979776

50815979776 is an abundant number, since it is smaller than the sum of its proper divisors (52561634543).

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

50815979776 is an frugal number, since it uses more digits than its factorization.

50815979776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 33339600, while the sum is 64.

Multiplying 50815979776 by its sum of digits (64), we get a square (3252222705664 = 1803392²).

50815979776 divided by its sum of digits (64) gives a square (793999684 = 28178²).

The spelling of 50815979776 in words is "fifty billion, eight hundred fifteen million, nine hundred seventy-nine thousand, seven hundred seventy-six".