50126779872 has 72 divisors (see below), whose sum is σ = 153513274824. Its totient is φ = 15423623424.

The previous prime is 50126779789. The next prime is 50126779873. The reversal of 50126779872 is 27897762105.

It is a happy number.

50126779872 is a `hidden beast` number, since 501 + 2 + 67 + 7 + 9 + 8 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50126779873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6690538 + ... + 6698025.

It is an arithmetic number, because the mean of its divisors is an integer number (2132128817).

Almost surely, 2^50126779872 is an apocalyptic number.

50126779872 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

50126779872 is an abundant number, since it is smaller than the sum of its proper divisors (103386494952).

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

50126779872 is a wasteful number, since it uses less digits than its factorization.

50126779872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13388592 (or 13388581 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 54.

The spelling of 50126779872 in words is "fifty billion, one hundred twenty-six million, seven hundred seventy-nine thousand, eight hundred seventy-two".