2897657923730 has 16 divisors (see below), whose sum is σ = 5216600747160.
Its totient is φ = 1158881728512.
The previous prime is 2897657923729. The next prime is 2897657923733. The reversal of 2897657923730 is 373297567982.
It can be written as a sum of positive squares in 4 ways, for example, as 1087446439249 + 1810211484481 = 1042807^2 + 1345441^2
It is a super-2 number, since 2×28976579237302 (a number of 26 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (2897657923733) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22613039 + ... + 22740818.
Almost surely, 22897657923730 is an apocalyptic number.
2897657923730 is a deficient number, since it is larger than the sum of its proper divisors (2318942823430).
2897657923730 is a wasteful number, since it uses less digits than its factorization.
2897657923730 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 45360253.
The product of its (nonzero) digits is 240045120, while the sum is 68.
The spelling of 2897657923730 in words is "two trillion, eight hundred ninety-seven billion, six hundred fifty-seven million, nine hundred twenty-three thousand, seven hundred thirty".