22236893977 has 2 divisors, whose sum is σ = 22236893978. Its totient is φ = 22236893976.

The previous prime is 22236893969. The next prime is 22236893981. The reversal of 22236893977 is 77939863222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21934794816 + 302099161 = 148104^2 + 17381^2 .

It is a cyclic number.

It is not a de Polignac number, because 22236893977 - 2³ = 22236893969 is a prime.

It is not a weakly prime, because it can be changed into another prime (22236893927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11118446988 + 11118446989.

It is an arithmetic number, because the mean of its divisors is an integer number (11118446989).

Almost surely, 2^22236893977 is an apocalyptic number.

It is an amenable number.

22236893977 is a deficient number, since it is larger than the sum of its proper divisors (1).

22236893977 is an equidigital number, since it uses as much as digits as its factorization.

22236893977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 58.

The spelling of 22236893977 in words is "twenty-two billion, two hundred thirty-six million, eight hundred ninety-three thousand, nine hundred seventy-seven".