23222440477 has 2 divisors, whose sum is σ = 23222440478. Its totient is φ = 23222440476.

The previous prime is 23222440459. The next prime is 23222440489. The reversal of 23222440477 is 77404422232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15219169956 + 8003270521 = 123366^2 + 89461^2 .

It is a cyclic number.

It is not a de Polignac number, because 23222440477 - 2¹⁹ = 23221916189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23222440427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11611220238 + 11611220239.

It is an arithmetic number, because the mean of its divisors is an integer number (11611220239).

Almost surely, 2^23222440477 is an apocalyptic number.

It is an amenable number.

23222440477 is a deficient number, since it is larger than the sum of its proper divisors (1).

23222440477 is an equidigital number, since it uses as much as digits as its factorization.

23222440477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 150528, while the sum is 37.

The spelling of 23222440477 in words is "twenty-three billion, two hundred twenty-two million, four hundred forty thousand, four hundred seventy-seven".