20292079500 has 768 divisors, whose sum is σ = 83211448320. Its totient is φ = 4199040000.

The previous prime is 20292079499. The next prime is 20292079513. The reversal of 20292079500 is 597029202.

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

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 84199380 + ... + 84199620.

It is an arithmetic number, because the mean of its divisors is an integer number (108348240).

Almost surely, 2^20292079500 is an apocalyptic number.

20292079500 is a gapful number since it is divisible by the number (20) 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 20292079500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41605724160).

20292079500 is an abundant number, since it is smaller than the sum of its proper divisors (62919368820).

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

20292079500 is a wasteful number, since it uses less digits than its factorization.

20292079500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The spelling of 20292079500 in words is "twenty billion, two hundred ninety-two million, seventy-nine thousand, five hundred".