22146346687 has 2 divisors, whose sum is σ = 22146346688. Its totient is φ = 22146346686.

The previous prime is 22146346609. The next prime is 22146346699. The reversal of 22146346687 is 78664364122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22146346687 - 2¹⁹ = 22145822399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22146346687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22146346787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11073173343 + 11073173344.

It is an arithmetic number, because the mean of its divisors is an integer number (11073173344).

Almost surely, 2^22146346687 is an apocalyptic number.

22146346687 is a deficient number, since it is larger than the sum of its proper divisors (1).

22146346687 is an equidigital number, since it uses as much as digits as its factorization.

22146346687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 49.

The spelling of 22146346687 in words is "twenty-two billion, one hundred forty-six million, three hundred forty-six thousand, six hundred eighty-seven".