878109757882 has 32 divisors (see below), whose sum is σ = 1553989754880. Its totient is φ = 364169625840.

The previous prime is 878109757859. The next prime is 878109757891. The reversal of 878109757882 is 288757901878.

It is a super-2 number, since 2×878109757882² (a number of 25 digits) contains 22 as substring.

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, 7807813 + ... + 7919479.

It is an arithmetic number, because the mean of its divisors is an integer number (48562179840).

Almost surely, 2^878109757882 is an apocalyptic number.

878109757882 is a deficient number, since it is larger than the sum of its proper divisors (675879996998).

878109757882 is a wasteful number, since it uses less digits than its factorization.

878109757882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129826.

The product of its (nonzero) digits is 126443520, while the sum is 70.

The spelling of 878109757882 in words is "eight hundred seventy-eight billion, one hundred nine million, seven hundred fifty-seven thousand, eight hundred eighty-two".