878298854904 has 96 divisors (see below), whose sum is σ = 2388869327520. Its totient is φ = 291518742528.

The previous prime is 878298854903. The next prime is 878298854929. The reversal of 878298854904 is 409458892878.

878298854904 is a `hidden beast` number, since 8 + 78 + 2 + 9 + 8 + 8 + 549 + 0 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878298854903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61296589 + ... + 61310915.

It is an arithmetic number, because the mean of its divisors is an integer number (24884055495).

Almost surely, 2^878298854904 is an apocalyptic number.

It is an amenable number.

878298854904 is an abundant number, since it is smaller than the sum of its proper divisors (1510570472616).

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

878298854904 is a wasteful number, since it uses less digits than its factorization.

878298854904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17909 (or 17902 counting only the distinct ones).

The product of its (nonzero) digits is 371589120, while the sum is 72.

Adding to 878298854904 its sum of digits (72), we get a square (878298854976 = 937176²).

The spelling of 878298854904 in words is "eight hundred seventy-eight billion, two hundred ninety-eight million, eight hundred fifty-four thousand, nine hundred four".