13991948084 has 24 divisors (see below), whose sum is σ = 25468751616. Its totient is φ = 6718608000.

The previous prime is 13991948059. The next prime is 13991948123. The reversal of 13991948084 is 48084919931.

It is a super-2 number, since 2×13991948084² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414437 + ... + 446924.

It is an arithmetic number, because the mean of its divisors is an integer number (1061197984).

Almost surely, 2^13991948084 is an apocalyptic number.

It is an amenable number.

13991948084 is a deficient number, since it is larger than the sum of its proper divisors (11476803532).

13991948084 is a wasteful number, since it uses less digits than its factorization.

13991948084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861527 (or 861525 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 13991948084 in words is "thirteen billion, nine hundred ninety-one million, nine hundred forty-eight thousand, eighty-four".