20129037192 has 224 divisors, whose sum is σ = 63175574880. Its totient is φ = 5957038080.

The previous prime is 20129037191. The next prime is 20129037217. The reversal of 20129037192 is 29173092102.

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

It is not an unprimeable number, because it can be changed into a prime (20129037191) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2754888 + ... + 2762184.

Almost surely, 2^20129037192 is an apocalyptic number.

20129037192 is a gapful number since it is divisible by the number (22) 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 20129037192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31587787440).

20129037192 is an abundant number, since it is smaller than the sum of its proper divisors (43046537688).

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

20129037192 is a wasteful number, since it uses less digits than its factorization.

20129037192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375 (or 7356 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 20129037192 in words is "twenty billion, one hundred twenty-nine million, thirty-seven thousand, one hundred ninety-two".