15151197817 has 32 divisors (see below), whose sum is σ = 18026864640. Its totient is φ = 12465109440.

The previous prime is 15151197779. The next prime is 15151197829. The reversal of 15151197817 is 71879115151.

It is not a de Polignac number, because 15151197817 - 2⁷ = 15151197689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15151197857) 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 31 ways as a sum of consecutive naturals, for example, 12247723 + ... + 12248959.

It is an arithmetic number, because the mean of its divisors is an integer number (563339520).

Almost surely, 2^15151197817 is an apocalyptic number.

It is an amenable number.

15151197817 is a deficient number, since it is larger than the sum of its proper divisors (2875666823).

15151197817 is a wasteful number, since it uses less digits than its factorization.

15151197817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981.

The product of its digits is 88200, while the sum is 46.

The spelling of 15151197817 in words is "fifteen billion, one hundred fifty-one million, one hundred ninety-seven thousand, eight hundred seventeen".