15072031280 has 80 divisors (see below), whose sum is σ = 35732962944. Its totient is φ = 5910666240.

The previous prime is 15072031277. The next prime is 15072031283. The reversal of 15072031280 is 8213027051.

It is an interprime number because it is at equal distance from previous prime (15072031277) and next prime (15072031283).

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×15072031280² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15072031283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1542089 + ... + 1551831.

Almost surely, 2^15072031280 is an apocalyptic number.

15072031280 is a gapful number since it is divisible by the number (10) 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 15072031280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17866481472).

15072031280 is an abundant number, since it is smaller than the sum of its proper divisors (20660931664).

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

15072031280 is a wasteful number, since it uses less digits than its factorization.

15072031280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10134 (or 10128 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The spelling of 15072031280 in words is "fifteen billion, seventy-two million, thirty-one thousand, two hundred eighty".