20609672292 has 96 divisors (see below), whose sum is σ = 58566950400. Its totient is φ = 6215680800.

The previous prime is 20609672269. The next prime is 20609672297. The reversal of 20609672292 is 29227690602.

20609672292 is a `hidden beast` number, since 206 + 0 + 96 + 72 + 292 = 666.

It is not an unprimeable number, because it can be changed into a prime (20609672297) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209559 + ... + 291777.

It is an arithmetic number, because the mean of its divisors is an integer number (610072400).

Almost surely, 2^20609672292 is an apocalyptic number.

20609672292 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 20609672292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29283475200).

20609672292 is an abundant number, since it is smaller than the sum of its proper divisors (37957278108).

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

20609672292 is a wasteful number, since it uses less digits than its factorization.

20609672292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82454 (or 82446 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 20609672292 in words is "twenty billion, six hundred nine million, six hundred seventy-two thousand, two hundred ninety-two".