524326623421 has 2 divisors, whose sum is σ = 524326623422. Its totient is φ = 524326623420.

The previous prime is 524326623383. The next prime is 524326623439. The reversal of 524326623421 is 124326623425.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 446242704196 + 78083919225 = 668014^2 + 279435^2 .

It is a cyclic number.

It is not a de Polignac number, because 524326623421 - 2²¹ = 524324526269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (524326620421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262163311710 + 262163311711.

It is an arithmetic number, because the mean of its divisors is an integer number (262163311711).

Almost surely, 2^524326623421 is an apocalyptic number.

It is an amenable number.

524326623421 is a deficient number, since it is larger than the sum of its proper divisors (1).

524326623421 is an equidigital number, since it uses as much as digits as its factorization.

524326623421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 40.

The spelling of 524326623421 in words is "five hundred twenty-four billion, three hundred twenty-six million, six hundred twenty-three thousand, four hundred twenty-one".