2404907752661 has 2 divisors, whose sum is σ = 2404907752662. Its totient is φ = 2404907752660.

The previous prime is 2404907752633. The next prime is 2404907752711. The reversal of 2404907752661 is 1662577094042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1739745172036 + 665162580625 = 1318994^2 + 815575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2404907752661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2404907752561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1202453876330 + 1202453876331.

It is an arithmetic number, because the mean of its divisors is an integer number (1202453876331).

Almost surely, 2^{2404907752661} is an apocalyptic number.

It is an amenable number.

2404907752661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2404907752661 is an equidigital number, since it uses as much as digits as its factorization.

2404907752661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 2404907752661 in words is "two trillion, four hundred four billion, nine hundred seven million, seven hundred fifty-two thousand, six hundred sixty-one".