10109879940 has 48 divisors (see below), whose sum is σ = 29972823552. Its totient is φ = 2537381376.

The previous prime is 10109879939. The next prime is 10109879947. The reversal of 10109879940 is 4997890101.

It is a self number, because there is not a number n which added to its sum of digits gives 10109879940.

It is not an unprimeable number, because it can be changed into a prime (10109879947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4954804 + ... + 4956843.

It is an arithmetic number, because the mean of its divisors is an integer number (624433824).

Almost surely, 2^10109879940 is an apocalyptic number.

10109879940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10109879940 is an abundant number, since it is smaller than the sum of its proper divisors (19862943612).

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

10109879940 is a wasteful number, since it uses less digits than its factorization.

10109879940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911676 (or 9911674 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 48.

The spelling of 10109879940 in words is "ten billion, one hundred nine million, eight hundred seventy-nine thousand, nine hundred forty".