613513664 has 14 divisors (see below), whose sum is σ = 1217441304. Its totient is φ = 306756800.

The previous prime is 613513657. The next prime is 613513669. The reversal of 613513664 is 466315316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613513669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4793012 + ... + 4793139.

Almost surely, 2^613513664 is an apocalyptic number.

613513664 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

613513664 is a deficient number, since it is larger than the sum of its proper divisors (603927640).

613513664 is an equidigital number, since it uses as much as digits as its factorization.

613513664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9586163 (or 9586153 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 613513664 is about 24769.2079808782. The cubic root of 613513664 is about 849.7178597622.

The spelling of 613513664 in words is "six hundred thirteen million, five hundred thirteen thousand, six hundred sixty-four".