8404756649690 has 16 divisors (see below), whose sum is σ = 15284526527592. Its totient is φ = 3327243869184.

The previous prime is 8404756649687. The next prime is 8404756649701. The reversal of 8404756649690 is 969466574048.

It can be written as a sum of positive squares in 4 ways, for example, as 7799972022649 + 604784627041 = 2792843^2 + 777679^2 .

It is a super-2 number, since 2×8404756649690² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8404756649690.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4332347819 + ... + 4332349758.

Almost surely, 2^{8404756649690} is an apocalyptic number.

8404756649690 is a deficient number, since it is larger than the sum of its proper divisors (6879769877902).

8404756649690 is a wasteful number, since it uses less digits than its factorization.

8404756649690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8664697681.

The product of its (nonzero) digits is 313528320, while the sum is 68.

The spelling of 8404756649690 in words is "eight trillion, four hundred four billion, seven hundred fifty-six million, six hundred forty-nine thousand, six hundred ninety".