19202113008 has 120 divisors (see below), whose sum is σ = 58013526480. Its totient is φ = 5894000640.

The previous prime is 19202112977. The next prime is 19202113009. The reversal of 19202113008 is 80031120291.

It is a super-2 number, since 2×19202113008² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19202113009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 772128 + ... + 796608.

It is an arithmetic number, because the mean of its divisors is an integer number (483446054).

Almost surely, 2^19202113008 is an apocalyptic number.

19202113008 is a gapful number since it is divisible by the number (18) 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 19202113008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29006763240).

19202113008 is an abundant number, since it is smaller than the sum of its proper divisors (38811413472).

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

19202113008 is a wasteful number, since it uses less digits than its factorization.

19202113008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24927 (or 24918 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 19202113008 its reverse (80031120291), we get a palindrome (99233233299).

The spelling of 19202113008 in words is "nineteen billion, two hundred two million, one hundred thirteen thousand, eight".