13998709642 has 16 divisors (see below), whose sum is σ = 21455642880. Its totient is φ = 6846978928.

The previous prime is 13998709633. The next prime is 13998709643. The reversal of 13998709642 is 24690789931.

It is not an unprimeable number, because it can be changed into a prime (13998709643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155148 + ... + 228184.

It is an arithmetic number, because the mean of its divisors is an integer number (1340977680).

Almost surely, 2^13998709642 is an apocalyptic number.

13998709642 is a deficient number, since it is larger than the sum of its proper divisors (7456933238).

13998709642 is a wasteful number, since it uses less digits than its factorization.

13998709642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75125.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 13998709642 in words is "thirteen billion, nine hundred ninety-eight million, seven hundred nine thousand, six hundred forty-two".