404245650653642 has 16 divisors (see below), whose sum is σ = 693060531325632. Its totient is φ = 173231139157440.

The previous prime is 404245650653539. The next prime is 404245650653723. The reversal of 404245650653642 is 246356056542404.

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, 1416255284 + ... + 1416540687.

It is an arithmetic number, because the mean of its divisors is an integer number (43316283207852).

Almost surely, 2^{404245650653642} is an apocalyptic number.

404245650653642 is a deficient number, since it is larger than the sum of its proper divisors (288814880671990).

404245650653642 is a wasteful number, since it uses less digits than its factorization.

404245650653642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2832806173.

The product of its (nonzero) digits is 82944000, while the sum is 56.

The spelling of 404245650653642 in words is "four hundred four trillion, two hundred forty-five billion, six hundred fifty million, six hundred fifty-three thousand, six hundred forty-two".