68363134731 has 8 divisors (see below), whose sum is σ = 101278718160. Its totient is φ = 45575423136.

The previous prime is 68363134727. The next prime is 68363134733. The reversal of 68363134731 is 13743136386.

It is a happy number.

68363134731 is a `hidden beast` number, since 6 + 8 + 3 + 631 + 3 + 4 + 7 + 3 + 1 = 666.

It is not a de Polignac number, because 68363134731 - 2² = 68363134727 is a prime.

It is a super-2 number, since 2×68363134731² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68363134733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1265983950 + ... + 1265984003.

It is an arithmetic number, because the mean of its divisors is an integer number (12659839770).

Almost surely, 2^68363134731 is an apocalyptic number.

68363134731 is a deficient number, since it is larger than the sum of its proper divisors (32915583429).

68363134731 is a wasteful number, since it uses less digits than its factorization.

68363134731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531967962 (or 2531967956 counting only the distinct ones).

The product of its digits is 653184, while the sum is 45.

The spelling of 68363134731 in words is "sixty-eight billion, three hundred sixty-three million, one hundred thirty-four thousand, seven hundred thirty-one".