22861641432906 has 36 divisors (see below), whose sum is σ = 51436079897202. Its totient is φ = 7620547139928.

The previous prime is 22861641432871. The next prime is 22861641432911. The reversal of 22861641432906 is 60923414616822.

22861641432906 is a `hidden beast` number, since 2 + 2 + 8 + 61 + 64 + 1 + 432 + 90 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22577141874681 + 284499558225 = 4751541^2 + 533385^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 871105665 + ... + 871131908.

Almost surely, 2^{22861641432906} is an apocalyptic number.

22861641432906 is an abundant number, since it is smaller than the sum of its proper divisors (28574438464296).

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

22861641432906 is an frugal number, since it uses more digits than its factorization.

22861641432906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742237599 (or 1742237578 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 54.

The spelling of 22861641432906 in words is "twenty-two trillion, eight hundred sixty-one billion, six hundred forty-one million, four hundred thirty-two thousand, nine hundred six".