50785557675840 has 168 divisors, whose sum is σ = 188118170029608. Its totient is φ = 12501060341760.

The previous prime is 50785557675793. The next prime is 50785557675847. The reversal of 50785557675840 is 4857675558705.

50785557675840 is a `hidden beast` number, since 5 + 0 + 7 + 8 + 5 + 5 + 576 + 7 + 5 + 8 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 8792980367616 + 41992577308224 = 2965296^2 + 6480168^2 .

It is a super-2 number, since 2×50785557675840² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50785557675847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 678188491 + ... + 678263370.

It is an arithmetic number, because the mean of its divisors is an integer number (1119751012081).

Almost surely, 2^{50785557675840} is an apocalyptic number.

It is an amenable number.

50785557675840 is an abundant number, since it is smaller than the sum of its proper divisors (137332612353768).

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

50785557675840 is a wasteful number, since it uses less digits than its factorization.

50785557675840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356451897 (or 1356451884 counting only the distinct ones).

The product of its (nonzero) digits is 1646400000, while the sum is 72.

The spelling of 50785557675840 in words is "fifty trillion, seven hundred eighty-five billion, five hundred fifty-seven million, six hundred seventy-five thousand, eight hundred forty".