68283340731 has 6 divisors (see below), whose sum is σ = 98631492180. Its totient is φ = 45522227148.

The previous prime is 68283340687. The next prime is 68283340777. The reversal of 68283340731 is 13704338286.

It is not a de Polignac number, because 68283340731 - 2²¹ = 68281243579 is a prime.

It is a super-2 number, since 2×68283340731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68283340831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3793518921 + ... + 3793518938.

It is an arithmetic number, because the mean of its divisors is an integer number (16438582030).

Almost surely, 2^68283340731 is an apocalyptic number.

68283340731 is a deficient number, since it is larger than the sum of its proper divisors (30348151449).

68283340731 is a wasteful number, since it uses less digits than its factorization.

68283340731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7587037865 (or 7587037862 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 68283340731 in words is "sixty-eight billion, two hundred eighty-three million, three hundred forty thousand, seven hundred thirty-one".