19253787480 has 160 divisors (see below), whose sum is σ = 64898301600. Its totient is φ = 5119732224.

The previous prime is 19253787467. The next prime is 19253787533. The reversal of 19253787480 is 8478735291.

It is a happy number.

19253787480 is a `hidden beast` number, since 1 + 92 + 5 + 3 + 78 + 7 + 480 = 666.

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 39 ways as a sum of consecutive naturals, for example, 1154884 + ... + 1171436.

It is an arithmetic number, because the mean of its divisors is an integer number (405614385).

Almost surely, 2^19253787480 is an apocalyptic number.

19253787480 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 19253787480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32449150800).

19253787480 is an abundant number, since it is smaller than the sum of its proper divisors (45644514120).

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

19253787480 is a wasteful number, since it uses less digits than its factorization.

19253787480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16935 (or 16922 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 19253787480 in words is "nineteen billion, two hundred fifty-three million, seven hundred eighty-seven thousand, four hundred eighty".