19822115880 has 160 divisors (see below), whose sum is σ = 76142183040. Its totient is φ = 4530764160.

The previous prime is 19822115843. The next prime is 19822115891. The reversal of 19822115880 is 8851122891.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 414316 + ... + 459675.

It is an arithmetic number, because the mean of its divisors is an integer number (475888644).

Almost surely, 2^19822115880 is an apocalyptic number.

19822115880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19822115880 is an abundant number, since it is smaller than the sum of its proper divisors (56320067160).

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

19822115880 is a wasteful number, since it uses less digits than its factorization.

19822115880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874021 (or 874008 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 45.

The spelling of 19822115880 in words is "nineteen billion, eight hundred twenty-two million, one hundred fifteen thousand, eight hundred eighty".