878070809553 has 16 divisors (see below), whose sum is σ = 1338346210176. Its totient is φ = 501629667840.

The previous prime is 878070809549. The next prime is 878070809579. The reversal of 878070809553 is 355908070878.

It is not a de Polignac number, because 878070809553 - 2² = 878070809549 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (878070809153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5125408 + ... + 5293953.

It is an arithmetic number, because the mean of its divisors is an integer number (83646638136).

Almost surely, 2^878070809553 is an apocalyptic number.

It is an amenable number.

878070809553 is a deficient number, since it is larger than the sum of its proper divisors (460275400623).

878070809553 is a wasteful number, since it uses less digits than its factorization.

878070809553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10423384.

The product of its (nonzero) digits is 16934400, while the sum is 60.

The spelling of 878070809553 in words is "eight hundred seventy-eight billion, seventy million, eight hundred nine thousand, five hundred fifty-three".