10639346878 has 16 divisors (see below), whose sum is σ = 17442877824. Its totient is φ = 4845242880.

The previous prime is 10639346873. The next prime is 10639346881. The reversal of 10639346878 is 87864393601.

It is a happy number.

It is a super-2 number, since 2×10639346878² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10639346873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5046075 + ... + 5048182.

It is an arithmetic number, because the mean of its divisors is an integer number (1090179864).

Almost surely, 2^10639346878 is an apocalyptic number.

10639346878 is a deficient number, since it is larger than the sum of its proper divisors (6803530946).

10639346878 is a wasteful number, since it uses less digits than its factorization.

10639346878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094307.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The spelling of 10639346878 in words is "ten billion, six hundred thirty-nine million, three hundred forty-six thousand, eight hundred seventy-eight".