409791666702 has 32 divisors (see below), whose sum is σ = 941148328320. Its totient is φ = 117643540320.

The previous prime is 409791666689. The next prime is 409791666719. The reversal of 409791666702 is 207666197904.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163392553 + ... + 163395060.

It is an arithmetic number, because the mean of its divisors is an integer number (29410885260).

Almost surely, 2^409791666702 is an apocalyptic number.

409791666702 is an abundant number, since it is smaller than the sum of its proper divisors (531356661618).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

409791666702 is a wasteful number, since it uses less digits than its factorization.

409791666702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326787648.

The product of its (nonzero) digits is 6858432, while the sum is 57.

The spelling of 409791666702 in words is "four hundred nine billion, seven hundred ninety-one million, six hundred sixty-six thousand, seven hundred two".