2897657923723 has 2 divisors, whose sum is σ = 2897657923724.
Its totient is φ = 2897657923722.
The previous prime is 2897657923681. The next prime is 2897657923729. The reversal of 2897657923723 is 3273297567982.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2897657923723 - 29 = 2897657923211 is a prime.
It is not a weakly prime, because it can be changed into another prime (2897657923729) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1448828961861 + 1448828961862.
It is an arithmetic number, because the mean of its divisors is an integer number (1448828961862).
Almost surely, 22897657923723 is an apocalyptic number.
2897657923723 is a deficient number, since it is larger than the sum of its proper divisors (1).
2897657923723 is an equidigital number, since it uses as much as digits as its factorization.
2897657923723 is an evil number, because the sum of its binary digits is even.
The product of its digits is 480090240, while the sum is 70.
The spelling of 2897657923723 in words is "two trillion, eight hundred ninety-seven billion, six hundred fifty-seven million, nine hundred twenty-three thousand, seven hundred twenty-three".