878881683127 has 4 divisors (see below), whose sum is σ = 1004436209296. Its totient is φ = 753327156960.

The previous prime is 878881683109. The next prime is 878881683137. The reversal of 878881683127 is 721386188878.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-878881683127 is a prime.

It is a super-2 number, since 2×878881683127² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878881683137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62777263074 + ... + 62777263087.

It is an arithmetic number, because the mean of its divisors is an integer number (251109052324).

Almost surely, 2^878881683127 is an apocalyptic number.

878881683127 is a deficient number, since it is larger than the sum of its proper divisors (125554526169).

878881683127 is a wasteful number, since it uses less digits than its factorization.

878881683127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125554526168.

The product of its digits is 57802752, while the sum is 67.

The spelling of 878881683127 in words is "eight hundred seventy-eight billion, eight hundred eighty-one million, six hundred eighty-three thousand, one hundred twenty-seven".