15748669972 has 72 divisors (see below), whose sum is σ = 33466970880. Its totient is φ = 6458094720.

The previous prime is 15748669961. The next prime is 15748669991. The reversal of 15748669972 is 27996684751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 526203 + ... + 555325.

It is an arithmetic number, because the mean of its divisors is an integer number (464819040).

Almost surely, 2^15748669972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15748669972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16733485440).

15748669972 is an abundant number, since it is smaller than the sum of its proper divisors (17718300908).

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

15748669972 is a wasteful number, since it uses less digits than its factorization.

15748669972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29261 (or 29252 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 64.

The spelling of 15748669972 in words is "fifteen billion, seven hundred forty-eight million, six hundred sixty-nine thousand, nine hundred seventy-two".