731113493497 has 4 divisors (see below), whose sum is σ = 731128017780. Its totient is φ = 731098969216.

The previous prime is 731113493459. The next prime is 731113493503. The reversal of 731113493497 is 794394311137.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 794394311137 = 7 ⋅113484901591.

It can be written as a sum of positive squares in 2 ways, for example, as 678101193961 + 53012299536 = 823469^2 + 230244^2 .

It is a cyclic number.

It is not a de Polignac number, because 731113493497 - 2¹⁵ = 731113460729 is a prime.

It is a super-2 number, since 2×731113493497² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (731113493597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7186372 + ... + 7287397.

It is an arithmetic number, because the mean of its divisors is an integer number (182782004445).

Almost surely, 2^731113493497 is an apocalyptic number.

It is an amenable number.

731113493497 is a deficient number, since it is larger than the sum of its proper divisors (14524283).

731113493497 is a wasteful number, since it uses less digits than its factorization.

731113493497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14524282.

The product of its digits is 1714608, while the sum is 52.

The spelling of 731113493497 in words is "seven hundred thirty-one billion, one hundred thirteen million, four hundred ninety-three thousand, four hundred ninety-seven".