10139999994 has 48 divisors (see below), whose sum is σ = 22744500480. Its totient is φ = 3261479040.

The previous prime is 10139999981. The next prime is 10140000019. The reversal of 10139999994 is 49999993101.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167442 + ... + 219810.

It is an arithmetic number, because the mean of its divisors is an integer number (473843760).

Almost surely, 2^10139999994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10139999994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11372250240).

10139999994 is an abundant number, since it is smaller than the sum of its proper divisors (12604500486).

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

10139999994 is a wasteful number, since it uses less digits than its factorization.

10139999994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52755 (or 52752 counting only the distinct ones).

The product of its (nonzero) digits is 6377292, while the sum is 63.

The spelling of 10139999994 in words is "ten billion, one hundred thirty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-four".