13064890881 has 32 divisors (see below), whose sum is σ = 21104029440. Its totient is φ = 7018315776.

The previous prime is 13064890877. The next prime is 13064890889. The reversal of 13064890881 is 18809846031.

It is not a de Polignac number, because 13064890881 - 2² = 13064890877 is a prime.

It is a super-2 number, since 2×13064890881² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13064890881.

It is not an unprimeable number, because it can be changed into a prime (13064890889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292225 + ... + 333953.

It is an arithmetic number, because the mean of its divisors is an integer number (659500920).

Almost surely, 2^13064890881 is an apocalyptic number.

It is an amenable number.

13064890881 is a deficient number, since it is larger than the sum of its proper divisors (8039138559).

13064890881 is a wasteful number, since it uses less digits than its factorization.

13064890881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42633.

The product of its (nonzero) digits is 331776, while the sum is 48.

The spelling of 13064890881 in words is "thirteen billion, sixty-four million, eight hundred ninety thousand, eight hundred eighty-one".