879437938078 has 12 divisors (see below), whose sum is σ = 1534529463552. Its totient is φ = 376901973420.

The previous prime is 879437938051. The next prime is 879437938091. The reversal of 879437938078 is 870839734978.

It is a super-2 number, since 2×879437938078² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 879437938078.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4486928158 + ... + 4486928353.

It is an arithmetic number, because the mean of its divisors is an integer number (127877455296).

Almost surely, 2^879437938078 is an apocalyptic number.

879437938078 is a deficient number, since it is larger than the sum of its proper divisors (655091525474).

879437938078 is a wasteful number, since it uses less digits than its factorization.

879437938078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8973856527 (or 8973856520 counting only the distinct ones).

The product of its (nonzero) digits is 512096256, while the sum is 73.

It can be divided in two parts, 87943 and 7938078, that added together give a triangular number (8026021 = T₄₀₀₆).

The spelling of 879437938078 in words is "eight hundred seventy-nine billion, four hundred thirty-seven million, nine hundred thirty-eight thousand, seventy-eight".