68496717015 has 32 divisors (see below), whose sum is σ = 121809557760. Its totient is φ = 36520297632.

The previous prime is 68496716909. The next prime is 68496717019. The reversal of 68496717015 is 51071769486.

68496717015 is a `hidden beast` number, since 6 + 8 + 496 + 71 + 70 + 15 = 666.

It is not a de Polignac number, because 68496717015 - 2⁷ = 68496716887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68496717019) 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, 369732 + ... + 523158.

It is an arithmetic number, because the mean of its divisors is an integer number (3806548680).

Almost surely, 2^68496717015 is an apocalyptic number.

68496717015 is a deficient number, since it is larger than the sum of its proper divisors (53312840745).

68496717015 is a wasteful number, since it uses less digits than its factorization.

68496717015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156748 (or 156742 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 68496717015 in words is "sixty-eight billion, four hundred ninety-six million, seven hundred seventeen thousand, fifteen".