19342405992 has 192 divisors, whose sum is σ = 62814890880. Its totient is φ = 4832607744.

The previous prime is 19342405987. The next prime is 19342405997. The reversal of 19342405992 is 29950424391.

It is an interprime number because it is at equal distance from previous prime (19342405987) and next prime (19342405997).

It is not an unprimeable number, because it can be changed into a prime (19342405997) 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, 776158 + ... + 800690.

It is an arithmetic number, because the mean of its divisors is an integer number (327160890).

Almost surely, 2^19342405992 is an apocalyptic number.

19342405992 is a gapful number since it is divisible by the number (12) 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 19342405992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31407445440).

19342405992 is an abundant number, since it is smaller than the sum of its proper divisors (43472484888).

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

19342405992 is a wasteful number, since it uses less digits than its factorization.

19342405992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24600 (or 24577 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The spelling of 19342405992 in words is "nineteen billion, three hundred forty-two million, four hundred five thousand, nine hundred ninety-two".