13539989722 has 64 divisors (see below), whose sum is σ = 25404825600. Its totient is φ = 5281381440.

The previous prime is 13539989719. The next prime is 13539989759. The reversal of 13539989722 is 22798993531.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1140288 + ... + 1152100.

It is an arithmetic number, because the mean of its divisors is an integer number (396950400).

Almost surely, 2^13539989722 is an apocalyptic number.

13539989722 is a deficient number, since it is larger than the sum of its proper divisors (11864835878).

13539989722 is a wasteful number, since it uses less digits than its factorization.

13539989722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12011.

The product of its digits is 7348320, while the sum is 58.

The spelling of 13539989722 in words is "thirteen billion, five hundred thirty-nine million, nine hundred eighty-nine thousand, seven hundred twenty-two".