13897836650 has 24 divisors (see below), whose sum is σ = 25963873920. Its totient is φ = 5534640560.

The previous prime is 13897836619. The next prime is 13897836671. The reversal of 13897836650 is 5663879831.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600890 + ... + 623589.

It is an arithmetic number, because the mean of its divisors is an integer number (1081828080).

Almost surely, 2^13897836650 is an apocalyptic number.

13897836650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13897836650 is a deficient number, since it is larger than the sum of its proper divisors (12066037270).

13897836650 is a wasteful number, since it uses less digits than its factorization.

13897836650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224718 (or 1224713 counting only the distinct ones).

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

The spelling of 13897836650 in words is "thirteen billion, eight hundred ninety-seven million, eight hundred thirty-six thousand, six hundred fifty".