68364513 has 32 divisors (see below), whose sum is σ = 119750400. Its totient is φ = 37715328.

The previous prime is 68364511. The next prime is 68364553. The reversal of 68364513 is 31546386.

68364513 is a `hidden beast` number, since 6 + 8 + 3 + 645 + 1 + 3 = 666.

It is not a de Polignac number, because 68364513 - 2¹ = 68364511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68364511) 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, 756 + ... + 11717.

It is an arithmetic number, because the mean of its divisors is an integer number (3742200).

Almost surely, 2^68364513 is an apocalyptic number.

68364513 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

68364513 is a deficient number, since it is larger than the sum of its proper divisors (51385887).

68364513 is a wasteful number, since it uses less digits than its factorization.

68364513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12518 (or 12512 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 68364513 is about 8268.2835582725. The cubic root of 68364513 is about 408.8935326243.

The spelling of 68364513 in words is "sixty-eight million, three hundred sixty-four thousand, five hundred thirteen".