15679629971 has 8 divisors (see below), whose sum is σ = 16106190864. Its totient is φ = 15253215840.

The previous prime is 15679629949. The next prime is 15679630063. The reversal of 15679629971 is 17992697651.

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 15679629971 - 2¹⁰ = 15679628947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15679629071) 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, 200441 + ... + 267461.

It is an arithmetic number, because the mean of its divisors is an integer number (2013273858).

Almost surely, 2^15679629971 is an apocalyptic number.

15679629971 is a deficient number, since it is larger than the sum of its proper divisors (426560893).

15679629971 is an equidigital number, since it uses as much as digits as its factorization.

15679629971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73381.

The product of its digits is 12859560, while the sum is 62.

The spelling of 15679629971 in words is "fifteen billion, six hundred seventy-nine million, six hundred twenty-nine thousand, nine hundred seventy-one".