15788381280 has 192 divisors, whose sum is σ = 59309687808. Its totient is φ = 3451852800.

The previous prime is 15788381261. The next prime is 15788381281. The reversal of 15788381280 is 8218388751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15788381281) 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, 24871 + ... + 179430.

It is an arithmetic number, because the mean of its divisors is an integer number (308904624).

Almost surely, 2^15788381280 is an apocalyptic number.

15788381280 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 15788381280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29654843904).

15788381280 is an abundant number, since it is smaller than the sum of its proper divisors (43521306528).

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

15788381280 is a wasteful number, since it uses less digits than its factorization.

15788381280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204349 (or 204341 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 51.

The spelling of 15788381280 in words is "fifteen billion, seven hundred eighty-eight million, three hundred eighty-one thousand, two hundred eighty".