23212454400077 has 2 divisors, whose sum is σ = 23212454400078. Its totient is φ = 23212454400076.

The previous prime is 23212454400071. The next prime is 23212454400139. The reversal of 23212454400077 is 77000445421232.

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., 22637555315236 + 574899084841 = 4757894^2 + 758221^2 .

It is a cyclic number.

It is not a de Polignac number, because 23212454400077 - 2⁶ = 23212454400013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23212454400071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606227200038 + 11606227200039.

It is an arithmetic number, because the mean of its divisors is an integer number (11606227200039).

Almost surely, 2^{23212454400077} is an apocalyptic number.

It is an amenable number.

23212454400077 is a deficient number, since it is larger than the sum of its proper divisors (1).

23212454400077 is an equidigital number, since it uses as much as digits as its factorization.

23212454400077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 376320, while the sum is 41.

The spelling of 23212454400077 in words is "twenty-three trillion, two hundred twelve billion, four hundred fifty-four million, four hundred thousand, seventy-seven".