68463455315 has 4 divisors (see below), whose sum is σ = 82156146384. Its totient is φ = 54770764248.

The previous prime is 68463455311. The next prime is 68463455317. The reversal of 68463455315 is 51355436486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68463455315 - 2² = 68463455311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68463455311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6846345527 + ... + 6846345536.

It is an arithmetic number, because the mean of its divisors is an integer number (20539036596).

Almost surely, 2^68463455315 is an apocalyptic number.

68463455315 is a deficient number, since it is larger than the sum of its proper divisors (13692691069).

68463455315 is a wasteful number, since it uses less digits than its factorization.

68463455315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13692691068.

The product of its digits is 5184000, while the sum is 50.

The spelling of 68463455315 in words is "sixty-eight billion, four hundred sixty-three million, four hundred fifty-five thousand, three hundred fifteen".