22920471929 has 8 divisors (see below), whose sum is σ = 23739738120. Its totient is φ = 22103132800.

The previous prime is 22920471923. The next prime is 22920471947. The reversal of 22920471929 is 92917402922.

It can be written as a sum of positive squares in 4 ways, for example, as 2334822400 + 20585649529 = 48320^2 + 143477^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22920471929 - 2¹² = 22920467833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22920471923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457532 + ... + 505149.

It is an arithmetic number, because the mean of its divisors is an integer number (2967467265).

Almost surely, 2^22920471929 is an apocalyptic number.

22920471929 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

22920471929 is a deficient number, since it is larger than the sum of its proper divisors (819266191).

22920471929 is an equidigital number, since it uses as much as digits as its factorization.

22920471929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963531.

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 22920471929 in words is "twenty-two billion, nine hundred twenty million, four hundred seventy-one thousand, nine hundred twenty-nine".