68915172750 has 32 divisors (see below), whose sum is σ = 172012273056. Its totient is φ = 18377379200.

The previous prime is 68915172749. The next prime is 68915172779. The reversal of 68915172750 is 5727151986.

It is a junction number, because it is equal to n+sod(n) for n = 68915172693 and 68915172702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45942699 + ... + 45944198.

It is an arithmetic number, because the mean of its divisors is an integer number (5375383533).

Almost surely, 2^68915172750 is an apocalyptic number.

68915172750 is an abundant number, since it is smaller than the sum of its proper divisors (103097100306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68915172750 is a wasteful number, since it uses less digits than its factorization.

68915172750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91886917 (or 91886907 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 51.

The spelling of 68915172750 in words is "sixty-eight billion, nine hundred fifteen million, one hundred seventy-two thousand, seven hundred fifty".