19265848380 has 480 divisors, whose sum is σ = 66949048320. Its totient is φ = 4618944000.

The previous prime is 19265848379. The next prime is 19265848453. The reversal of 19265848380 is 8384856291.

19265848380 is a `hidden beast` number, since 1 + 9 + 26 + 584 + 8 + 38 + 0 = 666.

It is a super-2 number, since 2×19265848380² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 58204815 + ... + 58205145.

It is an arithmetic number, because the mean of its divisors is an integer number (139477184).

Almost surely, 2^19265848380 is an apocalyptic number.

19265848380 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 19265848380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33474524160).

19265848380 is an abundant number, since it is smaller than the sum of its proper divisors (47683199940).

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

19265848380 is a wasteful number, since it uses less digits than its factorization.

19265848380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 54.

The spelling of 19265848380 in words is "nineteen billion, two hundred sixty-five million, eight hundred forty-eight thousand, three hundred eighty".