13964551944 has 96 divisors (see below), whose sum is σ = 43000152480. Its totient is φ = 3755168256.

The previous prime is 13964551943. The next prime is 13964551963. The reversal of 13964551944 is 44915546931.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (13964551943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 329262 + ... + 369245.

It is an arithmetic number, because the mean of its divisors is an integer number (447918255).

Almost surely, 2^13964551944 is an apocalyptic number.

13964551944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13964551944 is an abundant number, since it is smaller than the sum of its proper divisors (29035600536).

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

13964551944 is a wasteful number, since it uses less digits than its factorization.

13964551944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698547 (or 698536 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 51.

The spelling of 13964551944 in words is "thirteen billion, nine hundred sixty-four million, five hundred fifty-one thousand, nine hundred forty-four".