50785415820 has 72 divisors (see below), whose sum is σ = 159018437760. Its totient is φ = 13105912320.

The previous prime is 50785415741. The next prime is 50785415887. The reversal of 50785415820 is 2851458705.

50785415820 is a `hidden beast` number, since 50 + 7 + 8 + 541 + 58 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 4545085 + ... + 4556244.

Almost surely, 2^50785415820 is an apocalyptic number.

It is an amenable number.

50785415820 is an abundant number, since it is smaller than the sum of its proper divisors (108233021940).

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

50785415820 is a wasteful number, since it uses less digits than its factorization.

50785415820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9101375 (or 9101370 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 45.

The spelling of 50785415820 in words is "fifty billion, seven hundred eighty-five million, four hundred fifteen thousand, eight hundred twenty".