68512956903 has 12 divisors (see below), whose sum is σ = 98983767168. Its totient is φ = 45665793600.

The previous prime is 68512956893. The next prime is 68512956913. The reversal of 68512956903 is 30965921586.

It is a happy number.

68512956903 is a `hidden beast` number, since 6 + 8 + 51 + 29 + 569 + 0 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (68512956893) and next prime (68512956913).

It is not a de Polignac number, because 68512956903 - 2⁶ = 68512956839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68512956903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68512956913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 746823 + ... + 833528.

It is an arithmetic number, because the mean of its divisors is an integer number (8248647264).

Almost surely, 2^68512956903 is an apocalyptic number.

68512956903 is a deficient number, since it is larger than the sum of its proper divisors (30470810265).

68512956903 is a wasteful number, since it uses less digits than its factorization.

68512956903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585174 (or 1585171 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 54.

The spelling of 68512956903 in words is "sixty-eight billion, five hundred twelve million, nine hundred fifty-six thousand, nine hundred three".