13072011808 has 48 divisors (see below), whose sum is σ = 26070460416. Its totient is φ = 6451361280.

The previous prime is 13072011803. The next prime is 13072011811. The reversal of 13072011808 is 80811027031.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13072011808.

It is not an unprimeable number, because it can be changed into a prime (13072011803) 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, 1025313 + ... + 1037983.

It is an arithmetic number, because the mean of its divisors is an integer number (543134592).

Almost surely, 2^13072011808 is an apocalyptic number.

It is an amenable number.

13072011808 is a deficient number, since it is larger than the sum of its proper divisors (12998448608).

13072011808 is a wasteful number, since it uses less digits than its factorization.

13072011808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13097 (or 13089 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 31.

Adding to 13072011808 its reverse (80811027031), we get a palindrome (93883038839).

The spelling of 13072011808 in words is "thirteen billion, seventy-two million, eleven thousand, eight hundred eight".