15880762752 has 128 divisors (see below), whose sum is σ = 43509903360. Its totient is φ = 5129091072.

The previous prime is 15880762747. The next prime is 15880762759. The reversal of 15880762752 is 25726708851.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×15880762752² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15880762695 and 15880762704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15880762759) 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, 2093238 + ... + 2100810.

It is an arithmetic number, because the mean of its divisors is an integer number (339921120).

Almost surely, 2^15880762752 is an apocalyptic number.

15880762752 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 15880762752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21754951680).

15880762752 is an abundant number, since it is smaller than the sum of its proper divisors (27629140608).

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

15880762752 is a wasteful number, since it uses less digits than its factorization.

15880762752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7760 (or 7748 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 15880762752 in words is "fifteen billion, eight hundred eighty million, seven hundred sixty-two thousand, seven hundred fifty-two".