423401465761 has 2 divisors, whose sum is σ = 423401465762. Its totient is φ = 423401465760.

The previous prime is 423401465759. The next prime is 423401465771. The reversal of 423401465761 is 167564104324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 369231230736 + 54170235025 = 607644^2 + 232745^2 .

It is a cyclic number.

It is not a de Polignac number, because 423401465761 - 2¹ = 423401465759 is a prime.

Together with 423401465759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (423401465771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211700732880 + 211700732881.

It is an arithmetic number, because the mean of its divisors is an integer number (211700732881).

Almost surely, 2^423401465761 is an apocalyptic number.

It is an amenable number.

423401465761 is a deficient number, since it is larger than the sum of its proper divisors (1).

423401465761 is an equidigital number, since it uses as much as digits as its factorization.

423401465761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 423401465761 in words is "four hundred twenty-three billion, four hundred one million, four hundred sixty-five thousand, seven hundred sixty-one".