15297797971 has 8 divisors (see below), whose sum is σ = 15359385600. Its totient is φ = 15236290440.

The previous prime is 15297797951. The next prime is 15297797987. The reversal of 15297797971 is 17979779251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15297797971 - 2¹⁹ = 15297273683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15297797951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378540 + ... + 416998.

It is an arithmetic number, because the mean of its divisors is an integer number (1919923200).

Almost surely, 2^15297797971 is an apocalyptic number.

15297797971 is a deficient number, since it is larger than the sum of its proper divisors (61587629).

15297797971 is a wasteful number, since it uses less digits than its factorization.

15297797971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40049.

The product of its digits is 17503290, while the sum is 64.

The spelling of 15297797971 in words is "fifteen billion, two hundred ninety-seven million, seven hundred ninety-seven thousand, nine hundred seventy-one".