15207971072 has 108 divisors (see below), whose sum is σ = 35852479488. Its totient is φ = 6306739200.

The previous prime is 15207971069. The next prime is 15207971099. The reversal of 15207971072 is 27017970251.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1717697 + ... + 1726527.

Almost surely, 2^15207971072 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 15207971072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17926239744).

15207971072 is an abundant number, since it is smaller than the sum of its proper divisors (20644508416).

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

15207971072 is an frugal number, since it uses more digits than its factorization.

15207971072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8916 (or 8871 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 41.

The spelling of 15207971072 in words is "fifteen billion, two hundred seven million, nine hundred seventy-one thousand, seventy-two".