15767972398272 has 224 divisors, whose sum is σ = 43756965494784. Its totient is φ = 5004910310400.

The previous prime is 15767972398271. The next prime is 15767972398313. The reversal of 15767972398272 is 27289327976751.

It is a junction number, because it is equal to n+sod(n) for n = 15767972398194 and 15767972398203.

It is not an unprimeable number, because it can be changed into a prime (15767972398271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363270523 + ... + 363313925.

Almost surely, 2^{15767972398272} is an apocalyptic number.

15767972398272 is a gapful number since it is divisible by the number (12) 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 15767972398272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21878482747392).

15767972398272 is an abundant number, since it is smaller than the sum of its proper divisors (27988993096512).

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

15767972398272 is a wasteful number, since it uses less digits than its factorization.

15767972398272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44427 (or 44417 counting only the distinct ones).

The product of its digits is 1120210560, while the sum is 75.

The spelling of 15767972398272 in words is "fifteen trillion, seven hundred sixty-seven billion, nine hundred seventy-two million, three hundred ninety-eight thousand, two hundred seventy-two".