808838397942 has 32 divisors (see below), whose sum is σ = 1640275185120. Its totient is φ = 265848376320.

The previous prime is 808838397877. The next prime is 808838397967. The reversal of 808838397942 is 249793838808.

It is a super-2 number, since 2×808838397942² (a number of 25 digits) contains 22 as substring.

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, 1405842 + ... + 1895802.

It is an arithmetic number, because the mean of its divisors is an integer number (51258599535).

Almost surely, 2^808838397942 is an apocalyptic number.

808838397942 is an abundant number, since it is smaller than the sum of its proper divisors (831436787178).

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

808838397942 is a wasteful number, since it uses less digits than its factorization.

808838397942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493808.

The product of its (nonzero) digits is 167215104, while the sum is 69.

The spelling of 808838397942 in words is "eight hundred eight billion, eight hundred thirty-eight million, three hundred ninety-seven thousand, nine hundred forty-two".