23223986777 has 2 divisors, whose sum is σ = 23223986778. Its totient is φ = 23223986776.

The previous prime is 23223986771. The next prime is 23223986801. The reversal of 23223986777 is 77768932232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17359643536 + 5864343241 = 131756^2 + 76579^2 .

It is a cyclic number.

It is not a de Polignac number, because 23223986777 - 2¹⁶ = 23223921241 is a prime.

It is not a weakly prime, because it can be changed into another prime (23223986771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611993388 + 11611993389.

It is an arithmetic number, because the mean of its divisors is an integer number (11611993389).

Almost surely, 2^23223986777 is an apocalyptic number.

It is an amenable number.

23223986777 is a deficient number, since it is larger than the sum of its proper divisors (1).

23223986777 is an equidigital number, since it uses as much as digits as its factorization.

23223986777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 56.

The spelling of 23223986777 in words is "twenty-three billion, two hundred twenty-three million, nine hundred eighty-six thousand, seven hundred seventy-seven".