364251043421 has 2 divisors, whose sum is σ = 364251043422. Its totient is φ = 364251043420.

The previous prime is 364251043399. The next prime is 364251043423. The reversal of 364251043421 is 124340152463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246249175225 + 118001868196 = 496235^2 + 343514^2 .

It is a cyclic number.

It is not a de Polignac number, because 364251043421 - 2⁶ = 364251043357 is a prime.

Together with 364251043423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (364251043423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182125521710 + 182125521711.

It is an arithmetic number, because the mean of its divisors is an integer number (182125521711).

Almost surely, 2^364251043421 is an apocalyptic number.

It is an amenable number.

364251043421 is a deficient number, since it is larger than the sum of its proper divisors (1).

364251043421 is an equidigital number, since it uses as much as digits as its factorization.

364251043421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 364251043421 its reverse (124340152463), we get a palindrome (488591195884).

The spelling of 364251043421 in words is "three hundred sixty-four billion, two hundred fifty-one million, forty-three thousand, four hundred twenty-one".