19313308980 has 192 divisors, whose sum is σ = 69834240000. Its totient is φ = 4339598976.

The previous prime is 19313308979. The next prime is 19313309009. The reversal of 19313308980 is 8980331391.

It is a happy number.

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

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 179721 + ... + 266319.

It is an arithmetic number, because the mean of its divisors is an integer number (363720000).

Almost surely, 2^19313308980 is an apocalyptic number.

19313308980 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 19313308980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34917120000).

19313308980 is an abundant number, since it is smaller than the sum of its proper divisors (50520931020).

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

19313308980 is a wasteful number, since it uses less digits than its factorization.

19313308980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86683 (or 86675 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The spelling of 19313308980 in words is "nineteen billion, three hundred thirteen million, three hundred eight thousand, nine hundred eighty".