2971997051 has 4 divisors (see below), whose sum is σ = 2980562232. Its totient is φ = 2963431872.

The previous prime is 2971997027. The next prime is 2971997057. The reversal of 2971997051 is 1507991792.

2971997051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2971997051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2971997057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4282070 + ... + 4282763.

It is an arithmetic number, because the mean of its divisors is an integer number (745140558).

Almost surely, 2^2971997051 is an apocalyptic number.

2971997051 is a deficient number, since it is larger than the sum of its proper divisors (8565181).

2971997051 is an equidigital number, since it uses as much as digits as its factorization.

2971997051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8565180.

The product of its (nonzero) digits is 357210, while the sum is 50.

The square root of 2971997051 is about 54516.0256346700. The cubic root of 2971997051 is about 1437.7480637157.

The spelling of 2971997051 in words is "two billion, nine hundred seventy-one million, nine hundred ninety-seven thousand, fifty-one".