22782345877 has 2 divisors, whose sum is σ = 22782345878. Its totient is φ = 22782345876.

The previous prime is 22782345869. The next prime is 22782345907. The reversal of 22782345877 is 77854328722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18909275121 + 3873070756 = 137511^2 + 62234^2 .

It is a cyclic number.

It is not a de Polignac number, because 22782345877 - 2³ = 22782345869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22782315877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11391172938 + 11391172939.

It is an arithmetic number, because the mean of its divisors is an integer number (11391172939).

Almost surely, 2^22782345877 is an apocalyptic number.

It is an amenable number.

22782345877 is a deficient number, since it is larger than the sum of its proper divisors (1).

22782345877 is an equidigital number, since it uses as much as digits as its factorization.

22782345877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10536960, while the sum is 55.

The spelling of 22782345877 in words is "twenty-two billion, seven hundred eighty-two million, three hundred forty-five thousand, eight hundred seventy-seven".