409979751659812 has 12 divisors (see below), whose sum is σ = 717643618231680. Its totient is φ = 204938717879336.

The previous prime is 409979751659741. The next prime is 409979751659843. The reversal of 409979751659812 is 218956157979904.

It is a super-2 number, since 2×409979751659812² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12789469612 + ... + 12789501667.

It is an arithmetic number, because the mean of its divisors is an integer number (59803634852640).

Almost surely, 2^{409979751659812} is an apocalyptic number.

It is an amenable number.

409979751659812 is a deficient number, since it is larger than the sum of its proper divisors (307663866571868).

409979751659812 is a wasteful number, since it uses less digits than its factorization.

409979751659812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25578975290 (or 25578975288 counting only the distinct ones).

The product of its (nonzero) digits is 3086294400, while the sum is 82.

The spelling of 409979751659812 in words is "four hundred nine trillion, nine hundred seventy-nine billion, seven hundred fifty-one million, six hundred fifty-nine thousand, eight hundred twelve".