2979740569 has 45 divisors (see below), whose sum is σ = 3619075947. Its totient is φ = 2452484736.

The previous prime is 2979740563. The next prime is 2979740593. The reversal of 2979740569 is 9650479792.

The square root of 2979740569 is 54587.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 2720144025 + 259596544 = 52155^2 + 16112^2 .

It is not a de Polignac number, because 2979740569 - 2⁵ = 2979740537 is a prime.

It is a super-2 number, since 2×2979740569² = 17757707717088887522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2979740563) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 156828442 + ... + 156828460.

Almost surely, 2^2979740569 is an apocalyptic number.

2979740569 is the 54587-th square number.

2979740569 is the 27294-th centered octagonal number.

It is an amenable number.

2979740569 is a deficient number, since it is larger than the sum of its proper divisors (639335378).

2979740569 is an frugal number, since it uses more digits than its factorization.

2979740569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 49 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 58.

The cubic root of 2979740569 is about 1438.9956617234.

The spelling of 2979740569 in words is "two billion, nine hundred seventy-nine million, seven hundred forty thousand, five hundred sixty-nine".