50852981438 has 32 divisors (see below), whose sum is σ = 88167011328. Its totient is φ = 21547749600.

The previous prime is 50852981437. The next prime is 50852981489. The reversal of 50852981438 is 83418925805.

It is a super-2 number, since 2×50852981438² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50852981438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50852981437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445856 + ... + 548172.

It is an arithmetic number, because the mean of its divisors is an integer number (2755219104).

Almost surely, 2^50852981438 is an apocalyptic number.

50852981438 is a deficient number, since it is larger than the sum of its proper divisors (37314029890).

50852981438 is a wasteful number, since it uses less digits than its factorization.

50852981438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102728.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 50852981438 in words is "fifty billion, eight hundred fifty-two million, nine hundred eighty-one thousand, four hundred thirty-eight".