22138368316851 has 8 divisors (see below), whose sum is σ = 29519822844864. Its totient is φ = 14757913000040.

The previous prime is 22138368316843. The next prime is 22138368316853. The reversal of 22138368316851 is 15861386383122.

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 22138368316851 - 2³ = 22138368316843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22138368316791 and 22138368316800.

It is not an unprimeable number, because it can be changed into a prime (22138368316853) 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, 249751101 + ... + 249839726.

It is an arithmetic number, because the mean of its divisors is an integer number (3689977855608).

Almost surely, 2^{22138368316851} is an apocalyptic number.

22138368316851 is a deficient number, since it is larger than the sum of its proper divisors (7381454528013).

22138368316851 is a wasteful number, since it uses less digits than its factorization.

22138368316851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499605601.

The product of its digits is 9953280, while the sum is 57.

The spelling of 22138368316851 in words is "twenty-two trillion, one hundred thirty-eight billion, three hundred sixty-eight million, three hundred sixteen thousand, eight hundred fifty-one".