19196147880 has 960 divisors, whose sum is σ = 82591850880. Its totient is φ = 3962649600.

The previous prime is 19196147759. The next prime is 19196147891. The reversal of 19196147880 is 8874169191.

19196147880 is a `hidden beast` number, since 1 + 9 + 1 + 96 + 1 + 478 + 80 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 146535415 + ... + 146535545.

It is an arithmetic number, because the mean of its divisors is an integer number (86033178).

Almost surely, 2^19196147880 is an apocalyptic number.

19196147880 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 19196147880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41295925440).

19196147880 is an abundant number, since it is smaller than the sum of its proper divisors (63395703000).

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

19196147880 is a wasteful number, since it uses less digits than its factorization.

19196147880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 19196147880 in words is "nineteen billion, one hundred ninety-six million, one hundred forty-seven thousand, eight hundred eighty".