19426313984 has 288 divisors, whose sum is σ = 52980480000. Its totient is φ = 6874398720.

The previous prime is 19426313983. The next prime is 19426313987. The reversal of 19426313984 is 48931362491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19426313983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9717017 + ... + 9719015.

It is an arithmetic number, because the mean of its divisors is an integer number (183960000).

Almost surely, 2^19426313984 is an apocalyptic number.

19426313984 is a gapful number since it is divisible by the number (14) 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 19426313984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26490240000).

19426313984 is an abundant number, since it is smaller than the sum of its proper divisors (33554166016).

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

19426313984 is a wasteful number, since it uses less digits than its factorization.

19426313984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079 (or 2065 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The spelling of 19426313984 in words is "nineteen billion, four hundred twenty-six million, three hundred thirteen thousand, nine hundred eighty-four".