72453431191 has 16 divisors (see below), whose sum is σ = 77658897600. Its totient is φ = 67461907968.

The previous prime is 72453431189. The next prime is 72453431201. The reversal of 72453431191 is 19113435427.

It is a cyclic number.

It is not a de Polignac number, because 72453431191 - 2¹ = 72453431189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72453431161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177531 + ... + 420028.

It is an arithmetic number, because the mean of its divisors is an integer number (4853681100).

Almost surely, 2^72453431191 is an apocalyptic number.

72453431191 is a deficient number, since it is larger than the sum of its proper divisors (5205466409).

72453431191 is a wasteful number, since it uses less digits than its factorization.

72453431191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597738.

The product of its digits is 90720, while the sum is 40.

The spelling of 72453431191 in words is "seventy-two billion, four hundred fifty-three million, four hundred thirty-one thousand, one hundred ninety-one".