15349100491 has 4 divisors (see below), whose sum is σ = 15385559584. Its totient is φ = 15312641400.

The previous prime is 15349100489. The next prime is 15349100497. The reversal of 15349100491 is 19400194351.

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 15349100491 - 2¹ = 15349100489 is a prime.

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 15349100491.

It is not an unprimeable number, because it can be changed into a prime (15349100497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18228915 + ... + 18229756.

It is an arithmetic number, because the mean of its divisors is an integer number (3846389896).

Almost surely, 2^15349100491 is an apocalyptic number.

15349100491 is a deficient number, since it is larger than the sum of its proper divisors (36459093).

15349100491 is an equidigital number, since it uses as much as digits as its factorization.

15349100491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36459092.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 15349100491 in words is "fifteen billion, three hundred forty-nine million, one hundred thousand, four hundred ninety-one".