2865472745657 has 2 divisors, whose sum is σ = 2865472745658. Its totient is φ = 2865472745656.

The previous prime is 2865472745651. The next prime is 2865472745689. The reversal of 2865472745657 is 7565472745682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1583077305616 + 1282395440041 = 1258204^2 + 1132429^2 .

It is a cyclic number.

It is not a de Polignac number, because 2865472745657 - 2¹⁰ = 2865472744633 is a prime.

It is a super-2 number, since 2×2865472745657² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2865472745651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1432736372828 + 1432736372829.

It is an arithmetic number, because the mean of its divisors is an integer number (1432736372829).

Almost surely, 2^{2865472745657} is an apocalyptic number.

It is an amenable number.

2865472745657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2865472745657 is an equidigital number, since it uses as much as digits as its factorization.

2865472745657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 790272000, while the sum is 68.

The spelling of 2865472745657 in words is "two trillion, eight hundred sixty-five billion, four hundred seventy-two million, seven hundred forty-five thousand, six hundred fifty-seven".