22746170440387 has 2 divisors, whose sum is σ = 22746170440388. Its totient is φ = 22746170440386.

The previous prime is 22746170440271. The next prime is 22746170440397. The reversal of 22746170440387 is 78304407164722.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22746170440387 - 2²³ = 22746162051779 is a prime.

It is not a weakly prime, because it can be changed into another prime (22746170440397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11373085220193 + 11373085220194.

It is an arithmetic number, because the mean of its divisors is an integer number (11373085220194).

Almost surely, 2^{22746170440387} is an apocalyptic number.

22746170440387 is a deficient number, since it is larger than the sum of its proper divisors (1).

22746170440387 is an equidigital number, since it uses as much as digits as its factorization.

22746170440387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12644352, while the sum is 55.

The spelling of 22746170440387 in words is "twenty-two trillion, seven hundred forty-six billion, one hundred seventy million, four hundred forty thousand, three hundred eighty-seven".