402648682842 has 72 divisors (see below), whose sum is σ = 1014976370772. Its totient is φ = 115026912000.

The previous prime is 402648682823. The next prime is 402648682861. The reversal of 402648682842 is 248286846204.

402648682842 is a `hidden beast` number, since 4 + 0 + 2 + 6 + 486 + 82 + 84 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (402648682823) and next prime (402648682861).

It can be written as a sum of positive squares in 2 ways, for example, as 381156829641 + 21491853201 = 617379^2 + 146601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7541842 + ... + 7595042.

Almost surely, 2^402648682842 is an apocalyptic number.

402648682842 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

402648682842 is an abundant number, since it is smaller than the sum of its proper divisors (612327687930).

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

402648682842 is a wasteful number, since it uses less digits than its factorization.

402648682842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61804 (or 61794 counting only the distinct ones).

The product of its (nonzero) digits is 9437184, while the sum is 54.

The spelling of 402648682842 in words is "four hundred two billion, six hundred forty-eight million, six hundred eighty-two thousand, eight hundred forty-two".