8404756649701 has 2 divisors, whose sum is σ = 8404756649702. Its totient is φ = 8404756649700.

The previous prime is 8404756649687. The next prime is 8404756649713. The reversal of 8404756649701 is 1079466574048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8296646552100 + 108110097601 = 2880390^2 + 328801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8404756649701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8404756649701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8404756646701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4202378324850 + 4202378324851.

It is an arithmetic number, because the mean of its divisors is an integer number (4202378324851).

Almost surely, 2^{8404756649701} is an apocalyptic number.

It is an amenable number.

8404756649701 is a deficient number, since it is larger than the sum of its proper divisors (1).

8404756649701 is an equidigital number, since it uses as much as digits as its factorization.

8404756649701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 8404756649701 in words is "eight trillion, four hundred four billion, seven hundred fifty-six million, six hundred forty-nine thousand, seven hundred one".