50159789490 has 32 divisors (see below), whose sum is σ = 120393495936. Its totient is φ = 13374832640.

The previous prime is 50159789489. The next prime is 50159789497. The reversal of 50159789490 is 9498795105.

It is a super-2 number, since 2×50159789490² (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 50159789490.

It is not an unprimeable number, because it can be changed into a prime (50159789497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336595 + ... + 462185.

It is an arithmetic number, because the mean of its divisors is an integer number (3762296748).

Almost surely, 2^50159789490 is an apocalyptic number.

50159789490 is an abundant number, since it is smaller than the sum of its proper divisors (70233706446).

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

50159789490 is a wasteful number, since it uses less digits than its factorization.

50159789490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138914.

The product of its (nonzero) digits is 4082400, while the sum is 57.

The spelling of 50159789490 in words is "fifty billion, one hundred fifty-nine million, seven hundred eighty-nine thousand, four hundred ninety".