50865864192 has 560 divisors, whose sum is σ = 179206373808. Its totient is φ = 14213283840.

The previous prime is 50865864187. The next prime is 50865864223. The reversal of 50865864192 is 29146856805.

50865864192 is a `hidden beast` number, since 50 + 8 + 6 + 586 + 4 + 1 + 9 + 2 = 666.

It is a super-2 number, since 2×50865864192² (a number of 22 digits) contains 22 as substring.

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 55 ways as a sum of consecutive naturals, for example, 53373988 + ... + 53374940.

Almost surely, 2^50865864192 is an apocalyptic number.

50865864192 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50865864192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89603186904).

50865864192 is an abundant number, since it is smaller than the sum of its proper divisors (128340509616).

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

50865864192 is an equidigital number, since it uses as much as digits as its factorization.

50865864192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 50865864192 in words is "fifty billion, eight hundred sixty-five million, eight hundred sixty-four thousand, one hundred ninety-two".