73791700731 has 20 divisors (see below), whose sum is σ = 125979482992. Its totient is φ = 42166685808.

The previous prime is 73791700691. The next prime is 73791700747. The reversal of 73791700731 is 13700719737.

It is not a de Polignac number, because 73791700731 - 2⁹ = 73791700219 is a prime.

It is a super-2 number, since 2×73791700731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73791700771) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65071480 + ... + 65072613.

Almost surely, 2^73791700731 is an apocalyptic number.

73791700731 is a deficient number, since it is larger than the sum of its proper divisors (52187782261).

73791700731 is a wasteful number, since it uses less digits than its factorization.

73791700731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130144112 (or 130144103 counting only the distinct ones).

The product of its (nonzero) digits is 194481, while the sum is 45.

The spelling of 73791700731 in words is "seventy-three billion, seven hundred ninety-one million, seven hundred thousand, seven hundred thirty-one".