10138878750 has 640 divisors, whose sum is σ = 35419862016. Its totient is φ = 1866240000.

The previous prime is 10138878721. The next prime is 10138878767. The reversal of 10138878750 is 5787883101.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10138878750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 138888714 + ... + 138888786.

Almost surely, 2^10138878750 is an apocalyptic number.

10138878750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10138878750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17709931008).

10138878750 is an abundant number, since it is smaller than the sum of its proper divisors (25280983266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10138878750 is a wasteful number, since it uses less digits than its factorization.

10138878750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 48.

It can be divided in two parts, 10138 and 878750, that added together give a palindrome (888888).

The spelling of 10138878750 in words is "ten billion, one hundred thirty-eight million, eight hundred seventy-eight thousand, seven hundred fifty".