878138818648160 has 48 divisors (see below), whose sum is σ = 2074979956041216. Its totient is φ = 351191697282048.

The previous prime is 878138818648141. The next prime is 878138818648211. The reversal of 878138818648160 is 61846818831878.

It is a super-2 number, since 2×878138818648160² (a number of 31 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 7 ways as a sum of consecutive naturals, for example, 497790029 + ... + 499550988.

It is an arithmetic number, because the mean of its divisors is an integer number (43228749084192).

Almost surely, 2^{878138818648160} is an apocalyptic number.

878138818648160 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

878138818648160 is an abundant number, since it is smaller than the sum of its proper divisors (1196841137393056).

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

878138818648160 is a wasteful number, since it uses less digits than its factorization.

878138818648160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997346535 (or 997346527 counting only the distinct ones).

The product of its (nonzero) digits is 792723456, while the sum is 77.

The spelling of 878138818648160 in words is "eight hundred seventy-eight trillion, one hundred thirty-eight billion, eight hundred eighteen million, six hundred forty-eight thousand, one hundred sixty".