15749949930 has 96 divisors (see below), whose sum is σ = 44652409920. Its totient is φ = 3524451840.

The previous prime is 15749949911. The next prime is 15749949937. The reversal of 15749949930 is 3994994751.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15749949937) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85435 + ... + 196974.

It is an arithmetic number, because the mean of its divisors is an integer number (465129270).

Almost surely, 2^15749949930 is an apocalyptic number.

15749949930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15749949930 is an abundant number, since it is smaller than the sum of its proper divisors (28902459990).

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

15749949930 is a wasteful number, since it uses less digits than its factorization.

15749949930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282456 (or 282443 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 60.

The spelling of 15749949930 in words is "fifteen billion, seven hundred forty-nine million, nine hundred forty-nine thousand, nine hundred thirty".