19619861130 has 96 divisors (see below), whose sum is σ = 53814608640. Its totient is φ = 4945691520.

The previous prime is 19619861123. The next prime is 19619861137. The reversal of 19619861130 is 3116891691.

19619861130 is a `hidden beast` number, since 19 + 6 + 19 + 8 + 611 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (19619861123) and next prime (19619861137).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19619861137) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 779340 + ... + 804120.

It is an arithmetic number, because the mean of its divisors is an integer number (560568840).

Almost surely, 2^19619861130 is an apocalyptic number.

19619861130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 19619861130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26907304320).

19619861130 is an abundant number, since it is smaller than the sum of its proper divisors (34194747510).

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

19619861130 is a wasteful number, since it uses less digits than its factorization.

19619861130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25276 (or 25273 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 19619861130 in words is "nineteen billion, six hundred nineteen million, eight hundred sixty-one thousand, one hundred thirty".