50138881517998 has 32 divisors (see below), whose sum is σ = 93945642545664. Its totient is φ = 19539114721632.

The previous prime is 50138881517941. The next prime is 50138881518043. The reversal of 50138881517998 is 89971518883105.

It is a self number, because there is not a number n which added to its sum of digits gives 50138881517998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2055871090 + ... + 2055895477.

It is an arithmetic number, because the mean of its divisors is an integer number (2935801329552).

Almost surely, 2^{50138881517998} is an apocalyptic number.

50138881517998 is a deficient number, since it is larger than the sum of its proper divisors (43806761027666).

50138881517998 is a wasteful number, since it uses less digits than its factorization.

50138881517998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111766656.

The product of its (nonzero) digits is 174182400, while the sum is 73.

The spelling of 50138881517998 in words is "fifty trillion, one hundred thirty-eight billion, eight hundred eighty-one million, five hundred seventeen thousand, nine hundred ninety-eight".