938131479505 has 32 divisors (see below), whose sum is σ = 1238003709696. Its totient is φ = 676788000000.

The previous prime is 938131479457. The next prime is 938131479517. The reversal of 938131479505 is 505974131839.

It is not a de Polignac number, because 938131479505 - 2³⁹ = 388375665617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5741235 + ... + 5902375.

It is an arithmetic number, because the mean of its divisors is an integer number (38687615928).

Almost surely, 2^938131479505 is an apocalyptic number.

It is an amenable number.

938131479505 is a deficient number, since it is larger than the sum of its proper divisors (299872230191).

938131479505 is a wasteful number, since it uses less digits than its factorization.

938131479505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162009.

The product of its (nonzero) digits is 4082400, while the sum is 55.

The spelling of 938131479505 in words is "nine hundred thirty-eight billion, one hundred thirty-one million, four hundred seventy-nine thousand, five hundred five".