2971207985 has 16 divisors (see below), whose sum is σ = 3578191680. Its totient is φ = 2368491840.

The previous prime is 2971207961. The next prime is 2971207991. The reversal of 2971207985 is 5897021792.

It is not a de Polignac number, because 2971207985 - 2¹⁰ = 2971206961 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3458486 + ... + 3459344.

It is an arithmetic number, because the mean of its divisors is an integer number (223636980).

Almost surely, 2^2971207985 is an apocalyptic number.

It is an amenable number.

2971207985 is a deficient number, since it is larger than the sum of its proper divisors (606983695).

2971207985 is an equidigital number, since it uses as much as digits as its factorization.

2971207985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528.

The product of its (nonzero) digits is 635040, while the sum is 50.

The square root of 2971207985 is about 54508.7881446653. The cubic root of 2971207985 is about 1437.6208116233.

The spelling of 2971207985 in words is "two billion, nine hundred seventy-one million, two hundred seven thousand, nine hundred eighty-five".