73253264731 has 8 divisors (see below), whose sum is σ = 73797603120. Its totient is φ = 72709066368.

The previous prime is 73253264683. The next prime is 73253264743. The reversal of 73253264731 is 13746235237.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73253264731 - 2⁷ = 73253264603 is a prime.

It is a super-2 number, since 2×73253264731² (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 (73253264131) 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, 1167775 + ... + 1228903.

It is an arithmetic number, because the mean of its divisors is an integer number (9224700390).

Almost surely, 2^73253264731 is an apocalyptic number.

73253264731 is a deficient number, since it is larger than the sum of its proper divisors (544338389).

73253264731 is a wasteful number, since it uses less digits than its factorization.

73253264731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70013.

The product of its digits is 635040, while the sum is 43.

Adding to 73253264731 its reverse (13746235237), we get a palindrome (86999499968).

The spelling of 73253264731 in words is "seventy-three billion, two hundred fifty-three million, two hundred sixty-four thousand, seven hundred thirty-one".