878298854895 has 192 divisors, whose sum is σ = 1943994184704. Its totient is φ = 356185589760.

The previous prime is 878298854869. The next prime is 878298854903. The reversal of 878298854895 is 598458892878.

It is not a de Polignac number, because 878298854895 - 2⁸ = 878298854639 is a prime.

It is a super-2 number, since 2×878298854895² (a number of 25 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 191 ways as a sum of consecutive naturals, for example, 216487707 + ... + 216491763.

It is an arithmetic number, because the mean of its divisors is an integer number (10124969712).

Almost surely, 2^878298854895 is an apocalyptic number.

878298854895 is an abundant number, since it is smaller than the sum of its proper divisors (1065695329809).

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

878298854895 is a wasteful number, since it uses less digits than its factorization.

878298854895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5582 (or 5579 counting only the distinct ones).

The product of its digits is 3715891200, while the sum is 81.

Adding to 878298854895 its sum of digits (81), we get a square (878298854976 = 937176²).

The spelling of 878298854895 in words is "eight hundred seventy-eight billion, two hundred ninety-eight million, eight hundred fifty-four thousand, eight hundred ninety-five".