50078243920 has 40 divisors (see below), whose sum is σ = 116694825696. Its totient is φ = 19986066048.

The previous prime is 50078243911. The next prime is 50078243923. The reversal of 50078243920 is 2934287005.

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

It is a super-2 number, since 2×50078243920² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50078243923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671082 + ... + 741961.

Almost surely, 2^50078243920 is an apocalyptic number.

It is an amenable number.

50078243920 is an abundant number, since it is smaller than the sum of its proper divisors (66616581776).

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

50078243920 is a wasteful number, since it uses less digits than its factorization.

50078243920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413499 (or 1413493 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 50078243920 in words is "fifty billion, seventy-eight million, two hundred forty-three thousand, nine hundred twenty".