2897657923709 has 16 divisors (see below), whose sum is σ = 2956326024960. Its totient is φ = 2839468558080.

The previous prime is 2897657923681. The next prime is 2897657923723. The reversal of 2897657923709 is 9073297567982.

It is a cyclic number.

It is not a de Polignac number, because 2897657923709 - 2²⁴ = 2897641146493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2897657923729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15165449 + ... + 15355329.

It is an arithmetic number, because the mean of its divisors is an integer number (184770376560).

Almost surely, 2^{2897657923709} is an apocalyptic number.

It is an amenable number.

2897657923709 is a deficient number, since it is larger than the sum of its proper divisors (58668101251).

2897657923709 is a wasteful number, since it uses less digits than its factorization.

2897657923709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191140.

The product of its (nonzero) digits is 720135360, while the sum is 74.

The spelling of 2897657923709 in words is "two trillion, eight hundred ninety-seven billion, six hundred fifty-seven million, nine hundred twenty-three thousand, seven hundred nine".