402841865854 has 32 divisors (see below), whose sum is σ = 656142825600. Its totient is φ = 184890198240.

The previous prime is 402841865837. The next prime is 402841865893. The reversal of 402841865854 is 458568148204.

It is a happy number.

It is a super-2 number, since 2×402841865854² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402841865795 and 402841865804.

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, 1141624 + ... + 1452235.

It is an arithmetic number, because the mean of its divisors is an integer number (20504463300).

Almost surely, 2^402841865854 is an apocalyptic number.

402841865854 is a deficient number, since it is larger than the sum of its proper divisors (253300959746).

402841865854 is a wasteful number, since it uses less digits than its factorization.

402841865854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2594008.

The product of its (nonzero) digits is 9830400, while the sum is 55.

The spelling of 402841865854 in words is "four hundred two billion, eight hundred forty-one million, eight hundred sixty-five thousand, eight hundred fifty-four".