878775628475625 has 20 divisors (see below), whose sum is σ = 1464157367127312. Its totient is φ = 468680335186000.

The previous prime is 878775628475557. The next prime is 878775628475747. The reversal of 878775628475625 is 526574826577878.

It is not a de Polignac number, because 878775628475625 - 2¹¹ = 878775628473577 is a prime.

It is a super-2 number, since 2×878775628475625² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 234340165719 + ... + 234340169468.

Almost surely, 2^{878775628475625} is an apocalyptic number.

It is an amenable number.

878775628475625 is a deficient number, since it is larger than the sum of its proper divisors (585381738651687).

878775628475625 is an equidigital number, since it uses as much as digits as its factorization.

878775628475625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468680335210 (or 468680335195 counting only the distinct ones).

The product of its digits is 88510464000, while the sum is 87.

The spelling of 878775628475625 in words is "eight hundred seventy-eight trillion, seven hundred seventy-five billion, six hundred twenty-eight million, four hundred seventy-five thousand, six hundred twenty-five".