10938881506 has 32 divisors (see below), whose sum is σ = 19861459200. Its totient is φ = 4410986496.

The previous prime is 10938881497. The next prime is 10938881531. The reversal of 10938881506 is 60518883901.

It is a self number, because there is not a number n which added to its sum of digits gives 10938881506.

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, 1280706 + ... + 1289218.

It is an arithmetic number, because the mean of its divisors is an integer number (620670600).

Almost surely, 2^10938881506 is an apocalyptic number.

10938881506 is a deficient number, since it is larger than the sum of its proper divisors (8922577694).

10938881506 is a wasteful number, since it uses less digits than its factorization.

10938881506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13938.

The product of its (nonzero) digits is 414720, while the sum is 49.

The spelling of 10938881506 in words is "ten billion, nine hundred thirty-eight million, eight hundred eighty-one thousand, five hundred six".