13645320764 has 6 divisors (see below), whose sum is σ = 23879311344. Its totient is φ = 6822660380.

The previous prime is 13645320737. The next prime is 13645320769. The reversal of 13645320764 is 46702354631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13645320769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1705665092 + ... + 1705665099.

It is an arithmetic number, because the mean of its divisors is an integer number (3979885224).

Almost surely, 2^13645320764 is an apocalyptic number.

It is an amenable number.

13645320764 is a deficient number, since it is larger than the sum of its proper divisors (10233990580).

13645320764 is a wasteful number, since it uses less digits than its factorization.

13645320764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411330195 (or 3411330193 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 13645320764 in words is "thirteen billion, six hundred forty-five million, three hundred twenty thousand, seven hundred sixty-four".