22777620377 has 2 divisors, whose sum is σ = 22777620378. Its totient is φ = 22777620376.

The previous prime is 22777620367. The next prime is 22777620403. The reversal of 22777620377 is 77302677722.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19355487376 + 3422133001 = 139124^2 + 58499^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22777620377 is a prime.

It is not a weakly prime, because it can be changed into another prime (22777620367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11388810188 + 11388810189.

It is an arithmetic number, because the mean of its divisors is an integer number (11388810189).

Almost surely, 2^22777620377 is an apocalyptic number.

It is an amenable number.

22777620377 is a deficient number, since it is larger than the sum of its proper divisors (1).

22777620377 is an equidigital number, since it uses as much as digits as its factorization.

22777620377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2420208, while the sum is 50.

The spelling of 22777620377 in words is "twenty-two billion, seven hundred seventy-seven million, six hundred twenty thousand, three hundred seventy-seven".