67268563731 has 12 divisors (see below), whose sum is σ = 97174904008. Its totient is φ = 44841462624.

The previous prime is 67268563721. The next prime is 67268563781. The reversal of 67268563731 is 13736586276.

67268563731 is a `hidden beast` number, since 6 + 7 + 2 + 6 + 8 + 563 + 73 + 1 = 666.

67268563731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 67268563731 - 2⁶ = 67268563667 is a prime.

It is a super-2 number, since 2×67268563731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67268563721) 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, 252010 + ... + 445023.

Almost surely, 2^67268563731 is an apocalyptic number.

67268563731 is a deficient number, since it is larger than the sum of its proper divisors (29906340277).

67268563731 is a wasteful number, since it uses less digits than its factorization.

67268563731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707762 (or 707759 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 67268563731 in words is "sixty-seven billion, two hundred sixty-eight million, five hundred sixty-three thousand, seven hundred thirty-one".