15271020380 has 288 divisors, whose sum is σ = 41786140032. Its totient is φ = 4586250240.

The previous prime is 15271020353. The next prime is 15271020403. The reversal of 15271020380 is 8302017251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65540744 + ... + 65540976.

It is an arithmetic number, because the mean of its divisors is an integer number (145090764).

Almost surely, 2^15271020380 is an apocalyptic number.

15271020380 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 15271020380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20893070016).

15271020380 is an abundant number, since it is smaller than the sum of its proper divisors (26515119652).

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

15271020380 is a wasteful number, since it uses less digits than its factorization.

15271020380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 384 counting only the distinct ones).

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

The spelling of 15271020380 in words is "fifteen billion, two hundred seventy-one million, twenty thousand, three hundred eighty".