50785857578500 has 96 divisors (see below), whose sum is σ = 121668122669184. Its totient is φ = 18365553360000.

The previous prime is 50785857578483. The next prime is 50785857578503. The reversal of 50785857578500 is 587575858705.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 50785857578500.

It is not an unprimeable number, because it can be changed into a prime (50785857578503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24512214 + ... + 26503213.

It is an arithmetic number, because the mean of its divisors is an integer number (1267376277804).

Almost surely, 2^{50785857578500} is an apocalyptic number.

50785857578500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50785857578500 is an abundant number, since it is smaller than the sum of its proper divisors (70882265090684).

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

50785857578500 is a wasteful number, since it uses less digits than its factorization.

50785857578500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51015638 (or 51015626 counting only the distinct ones).

The product of its (nonzero) digits is 548800000, while the sum is 70.

The spelling of 50785857578500 in words is "fifty trillion, seven hundred eighty-five billion, eight hundred fifty-seven million, five hundred seventy-eight thousand, five hundred".