15492431311 has 4 divisors (see below), whose sum is σ = 17705635792. Its totient is φ = 13279226832.

The previous prime is 15492431303. The next prime is 15492431327. The reversal of 15492431311 is 11313429451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15492431311 - 2³ = 15492431303 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 (15492431341) 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, 1106602230 + ... + 1106602243.

It is an arithmetic number, because the mean of its divisors is an integer number (4426408948).

Almost surely, 2^15492431311 is an apocalyptic number.

15492431311 is a deficient number, since it is larger than the sum of its proper divisors (2213204481).

15492431311 is an equidigital number, since it uses as much as digits as its factorization.

15492431311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213204480.

The product of its digits is 12960, while the sum is 34.

The spelling of 15492431311 in words is "fifteen billion, four hundred ninety-two million, four hundred thirty-one thousand, three hundred eleven".