68261917395 has 24 divisors (see below), whose sum is σ = 127050753744. Its totient is φ = 31205447616.

The previous prime is 68261917343. The next prime is 68261917411. The reversal of 68261917395 is 59371916286.

It is not a de Polignac number, because 68261917395 - 2⁶ = 68261917331 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46435944 + ... + 46437413.

It is an arithmetic number, because the mean of its divisors is an integer number (5293781406).

Almost surely, 2^68261917395 is an apocalyptic number.

68261917395 is a deficient number, since it is larger than the sum of its proper divisors (58788836349).

68261917395 is a wasteful number, since it uses less digits than its factorization.

68261917395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92873379 (or 92873372 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The spelling of 68261917395 in words is "sixty-eight billion, two hundred sixty-one million, nine hundred seventeen thousand, three hundred ninety-five".