870938839078 has 24 divisors (see below), whose sum is σ = 1657853896104. Its totient is φ = 339326820000.

The previous prime is 870938839049. The next prime is 870938839163.

870938839078 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×870938839078² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 870938838998 and 870938839016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 403959423 + ... + 403961578.

It is an arithmetic number, because the mean of its divisors is an integer number (69077245671).

Almost surely, 2^870938839078 is an apocalyptic number.

870938839078 is a deficient number, since it is larger than the sum of its proper divisors (786915057026).

870938839078 is a wasteful number, since it uses less digits than its factorization.

870938839078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807921028 (or 807921021 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 70.

The spelling of 870938839078 in words is "eight hundred seventy billion, nine hundred thirty-eight million, eight hundred thirty-nine thousand, seventy-eight".