878142233547140 has 24 divisors (see below), whose sum is σ = 1844499320381760. Its totient is φ = 351180582955488.

The previous prime is 878142233547097. The next prime is 878142233547217. The reversal of 878142233547140 is 41745332241878.

It is a super-2 number, since 2×878142233547140² (a number of 31 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 878142233547140.

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, 4769309600 + ... + 4769493719.

It is an arithmetic number, because the mean of its divisors is an integer number (76854138349240).

Almost surely, 2^{878142233547140} is an apocalyptic number.

It is an amenable number.

878142233547140 is an abundant number, since it is smaller than the sum of its proper divisors (966357086834620).

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

878142233547140 is a wasteful number, since it uses less digits than its factorization.

878142233547140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9538807931 (or 9538807929 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 59.

The spelling of 878142233547140 in words is "eight hundred seventy-eight trillion, one hundred forty-two billion, two hundred thirty-three million, five hundred forty-seven thousand, one hundred forty".