878087729930 has 16 divisors (see below), whose sum is σ = 1585112842080. Its totient is φ = 350222885712.

The previous prime is 878087729927. The next prime is 878087730019. The reversal of 878087729930 is 39927780878.

It is a super-2 number, since 2×878087729930² (a number of 25 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 126522140 + ... + 126529079.

It is an arithmetic number, because the mean of its divisors is an integer number (99069552630).

Almost surely, 2^878087729930 is an apocalyptic number.

878087729930 is a deficient number, since it is larger than the sum of its proper divisors (707025112150).

878087729930 is a wasteful number, since it uses less digits than its factorization.

878087729930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253051573.

The product of its (nonzero) digits is 85349376, while the sum is 68.

The spelling of 878087729930 in words is "eight hundred seventy-eight billion, eighty-seven million, seven hundred twenty-nine thousand, nine hundred thirty".