15198864431 has 16 divisors (see below), whose sum is σ = 15703234560. Its totient is φ = 14703081120.

The previous prime is 15198864383. The next prime is 15198864469. The reversal of 15198864431 is 13446889151.

15198864431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 15198864431 - 2¹⁴ = 15198848047 is a prime.

It is a super-2 number, since 2×15198864431² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15198864431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15198864631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3695066 + ... + 3699176.

It is an arithmetic number, because the mean of its divisors is an integer number (981452160).

Almost surely, 2^15198864431 is an apocalyptic number.

15198864431 is a deficient number, since it is larger than the sum of its proper divisors (504370129).

15198864431 is an equidigital number, since it uses as much as digits as its factorization.

15198864431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126.

The product of its digits is 829440, while the sum is 50.

The spelling of 15198864431 in words is "fifteen billion, one hundred ninety-eight million, eight hundred sixty-four thousand, four hundred thirty-one".