50899357680 has 40 divisors (see below), whose sum is σ = 157788009552. Its totient is φ = 13573161984.

The previous prime is 50899357651. The next prime is 50899357681. The reversal of 50899357680 is 8675399805.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×50899357680² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50899357681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106040089 + ... + 106040568.

Almost surely, 2^50899357680 is an apocalyptic number.

It is an amenable number.

50899357680 is an abundant number, since it is smaller than the sum of its proper divisors (106888651872).

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

50899357680 is a wasteful number, since it uses less digits than its factorization.

50899357680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212080673 (or 212080667 counting only the distinct ones).

The product of its (nonzero) digits is 16329600, while the sum is 60.

The spelling of 50899357680 in words is "fifty billion, eight hundred ninety-nine million, three hundred fifty-seven thousand, six hundred eighty".