867880778022 has 12 divisors (see below), whose sum is σ = 1880408352420. Its totient is φ = 289293592668.

The previous prime is 867880778003. The next prime is 867880778047. The reversal of 867880778022 is 220877088768.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24107799372 + ... + 24107799407.

It is an arithmetic number, because the mean of its divisors is an integer number (156700696035).

Almost surely, 2^867880778022 is an apocalyptic number.

867880778022 is an abundant number, since it is smaller than the sum of its proper divisors (1012527574398).

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

867880778022 is a wasteful number, since it uses less digits than its factorization.

867880778022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48215598787 (or 48215598784 counting only the distinct ones).

The product of its (nonzero) digits is 33718272, while the sum is 63.

The spelling of 867880778022 in words is "eight hundred sixty-seven billion, eight hundred eighty million, seven hundred seventy-eight thousand, twenty-two".