2972865779 has 8 divisors (see below), whose sum is σ = 3246640992. Its totient is φ = 2705532480.

The previous prime is 2972865773. The next prime is 2972865781. The reversal of 2972865779 is 9775682792.

2972865779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2972865779 - 2⁸ = 2972865523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2972865773) 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, 1609514 + ... + 1611359.

It is an arithmetic number, because the mean of its divisors is an integer number (405830124).

Almost surely, 2^2972865779 is an apocalyptic number.

2972865779 is a deficient number, since it is larger than the sum of its proper divisors (273775213).

2972865779 is a wasteful number, since it uses less digits than its factorization.

2972865779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220957.

The product of its digits is 26671680, while the sum is 62.

The square root of 2972865779 is about 54523.9926912914. The cubic root of 2972865779 is about 1437.8881367935. Note that the first 3 decimals are identical.

The spelling of 2972865779 in words is "two billion, nine hundred seventy-two million, eight hundred sixty-five thousand, seven hundred seventy-nine".