2572676385661 has 2 divisors, whose sum is σ = 2572676385662. Its totient is φ = 2572676385660.

The previous prime is 2572676385649. The next prime is 2572676385683. The reversal of 2572676385661 is 1665836762752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1992809365561 + 579867020100 = 1411669^2 + 761490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2572676385661 - 2⁷ = 2572676385533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2572676385593 and 2572676385602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2572676365661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1286338192830 + 1286338192831.

It is an arithmetic number, because the mean of its divisors is an integer number (1286338192831).

Almost surely, 2^{2572676385661} is an apocalyptic number.

It is an amenable number.

2572676385661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2572676385661 is an equidigital number, since it uses as much as digits as its factorization.

2572676385661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 152409600, while the sum is 64.

The spelling of 2572676385661 in words is "two trillion, five hundred seventy-two billion, six hundred seventy-six million, three hundred eighty-five thousand, six hundred sixty-one".