13765899044 has 6 divisors (see below), whose sum is σ = 24090323334. Its totient is φ = 6882949520.

The previous prime is 13765899031. The next prime is 13765899053. The reversal of 13765899044 is 44099856731.

It can be written as a sum of positive squares in only one way, i.e., 10907713600 + 2858185444 = 104440^2 + 53462^2 .

It is a super-2 number, since 2×13765899044² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720737377 + ... + 1720737384.

It is an arithmetic number, because the mean of its divisors is an integer number (4015053889).

Almost surely, 2^13765899044 is an apocalyptic number.

It is an amenable number.

13765899044 is a deficient number, since it is larger than the sum of its proper divisors (10324424290).

13765899044 is a wasteful number, since it uses less digits than its factorization.

13765899044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441474765 (or 3441474763 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 13765899044 in words is "thirteen billion, seven hundred sixty-five million, eight hundred ninety-nine thousand, forty-four".