10099744638 has 8 divisors (see below), whose sum is σ = 20199489288. Its totient is φ = 3366581544.

The previous prime is 10099744631. The next prime is 10099744643. The reversal of 10099744638 is 83644799001.

It is a sphenic number, since it is the product of 3 distinct primes.

10099744638 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10099744631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 841645381 + ... + 841645392.

It is an arithmetic number, because the mean of its divisors is an integer number (2524936161).

Almost surely, 2^10099744638 is an apocalyptic number.

10099744638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

10099744638 is a wasteful number, since it uses less digits than its factorization.

10099744638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683290778.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 10099744638 in words is "ten billion, ninety-nine million, seven hundred forty-four thousand, six hundred thirty-eight".