22865010861 has 64 divisors (see below), whose sum is σ = 39837265920. Its totient is φ = 11311280640.

The previous prime is 22865010853. The next prime is 22865010881. The reversal of 22865010861 is 16801056822.

It is not a de Polignac number, because 22865010861 - 2³ = 22865010853 is a prime.

It is a super-2 number, since 2×22865010861² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22865010851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1207281 + ... + 1226073.

It is an arithmetic number, because the mean of its divisors is an integer number (622457280).

Almost surely, 2^22865010861 is an apocalyptic number.

22865010861 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22865010861 is a deficient number, since it is larger than the sum of its proper divisors (16972255059).

22865010861 is a wasteful number, since it uses less digits than its factorization.

22865010861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19066.

The product of its (nonzero) digits is 46080, while the sum is 39.

The spelling of 22865010861 in words is "twenty-two billion, eight hundred sixty-five million, ten thousand, eight hundred sixty-one".