404070366691 has 2 divisors, whose sum is σ = 404070366692. Its totient is φ = 404070366690.

The previous prime is 404070366647. The next prime is 404070366769. The reversal of 404070366691 is 196663070404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404070366691 - 2⁷ = 404070366563 is a prime.

It is a super-2 number, since 2×404070366691² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (404070366611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202035183345 + 202035183346.

It is an arithmetic number, because the mean of its divisors is an integer number (202035183346).

Almost surely, 2^404070366691 is an apocalyptic number.

404070366691 is a deficient number, since it is larger than the sum of its proper divisors (1).

404070366691 is an equidigital number, since it uses as much as digits as its factorization.

404070366691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 46.

The spelling of 404070366691 in words is "four hundred four billion, seventy million, three hundred sixty-six thousand, six hundred ninety-one".