13999599952 has 20 divisors (see below), whose sum is σ = 29210704180. Its totient is φ = 6461353728.

The previous prime is 13999599949. The next prime is 13999600081. The reversal of 13999599952 is 25999599931.

It can be written as a sum of positive squares in 2 ways, for example, as 6736469776 + 7263130176 = 82076^2 + 85224^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33652677 + ... + 33653092.

It is an arithmetic number, because the mean of its divisors is an integer number (1460535209).

Almost surely, 2^13999599952 is an apocalyptic number.

It is an amenable number.

13999599952 is an abundant number, since it is smaller than the sum of its proper divisors (15211104228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13999599952 is a wasteful number, since it uses less digits than its factorization.

13999599952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67305790 (or 67305784 counting only the distinct ones).

The product of its digits is 79716150, while the sum is 70.

The spelling of 13999599952 in words is "thirteen billion, nine hundred ninety-nine million, five hundred ninety-nine thousand, nine hundred fifty-two".