13509610064 has 40 divisors (see below), whose sum is σ = 26748109440. Its totient is φ = 6607048448.

The previous prime is 13509610061. The next prime is 13509610069. The reversal of 13509610064 is 46001690531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13509610061) 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, 1501772 + ... + 1510740.

It is an arithmetic number, because the mean of its divisors is an integer number (668702736).

Almost surely, 2^13509610064 is an apocalyptic number.

It is an amenable number.

13509610064 is a deficient number, since it is larger than the sum of its proper divisors (13238499376).

13509610064 is a wasteful number, since it uses less digits than its factorization.

13509610064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11027 (or 11021 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 13509610064 in words is "thirteen billion, five hundred nine million, six hundred ten thousand, sixty-four".