10399279800 has 768 divisors, whose sum is σ = 42497280000. Its totient is φ = 2098736640.

The previous prime is 10399279771. The next prime is 10399279837. The reversal of 10399279800 is 897299301.

It is a self number, because there is not a number n which added to its sum of digits gives 10399279800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 452142589 + ... + 452142611.

It is an arithmetic number, because the mean of its divisors is an integer number (55335000).

Almost surely, 2^10399279800 is an apocalyptic number.

10399279800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10399279800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21248640000).

10399279800 is an abundant number, since it is smaller than the sum of its proper divisors (32098000200).

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

10399279800 is a wasteful number, since it uses less digits than its factorization.

10399279800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 10399279800 in words is "ten billion, three hundred ninety-nine million, two hundred seventy-nine thousand, eight hundred".