22857855820369 has 32 divisors (see below), whose sum is σ = 23927616535680. Its totient is φ = 21813633331200.

The previous prime is 22857855820337. The next prime is 22857855820421. The reversal of 22857855820369 is 96302855875822.

It is not a de Polignac number, because 22857855820369 - 2⁵ = 22857855820337 is a prime.

It is a super-2 number, since 2×22857855820369² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22857855820298 and 22857855820307.

It is not an unprimeable number, because it can be changed into a prime (22857855820769) 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, 3431591899 + ... + 3431598559.

It is an arithmetic number, because the mean of its divisors is an integer number (747738016740).

Almost surely, 2^{22857855820369} is an apocalyptic number.

It is an amenable number.

22857855820369 is a deficient number, since it is larger than the sum of its proper divisors (1069760715311).

22857855820369 is a wasteful number, since it uses less digits than its factorization.

22857855820369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081.

The product of its (nonzero) digits is 580608000, while the sum is 70.

The spelling of 22857855820369 in words is "twenty-two trillion, eight hundred fifty-seven billion, eight hundred fifty-five million, eight hundred twenty thousand, three hundred sixty-nine".