19313071092 has 108 divisors (see below), whose sum is σ = 57752472960. Its totient is φ = 5424465312.

The previous prime is 19313071091. The next prime is 19313071093. The reversal of 19313071092 is 29017031391.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19313071091) and next prime (19313071093).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19313071091) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 11293 + ... + 196859.

It is an arithmetic number, because the mean of its divisors is an integer number (534745120).

Almost surely, 2^19313071092 is an apocalyptic number.

19313071092 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 19313071092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28876236480).

19313071092 is an abundant number, since it is smaller than the sum of its proper divisors (38439401868).

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

19313071092 is a wasteful number, since it uses less digits than its factorization.

19313071092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185650 (or 185638 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The spelling of 19313071092 in words is "nineteen billion, three hundred thirteen million, seventy-one thousand, ninety-two".