10399075488 has 120 divisors (see below), whose sum is σ = 31570197120. Its totient is φ = 3354514560.

The previous prime is 10399075487. The next prime is 10399075513. The reversal of 10399075488 is 88457099301.

10399075488 is a `hidden beast` number, since 1 + 0 + 3 + 9 + 90 + 7 + 548 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (10399075481) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15643 + ... + 145061.

It is an arithmetic number, because the mean of its divisors is an integer number (263084976).

Almost surely, 2^10399075488 is an apocalyptic number.

10399075488 is a gapful number since it is divisible by the number (18) 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 10399075488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15785098560).

10399075488 is an abundant number, since it is smaller than the sum of its proper divisors (21171121632).

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

10399075488 is a wasteful number, since it uses less digits than its factorization.

10399075488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129472 (or 129455 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 10399075488 in words is "ten billion, three hundred ninety-nine million, seventy-five thousand, four hundred eighty-eight".