264236104621 has 2 divisors, whose sum is σ = 264236104622. Its totient is φ = 264236104620.

The previous prime is 264236104609. The next prime is 264236104633. The reversal of 264236104621 is 126401632462.

It is a balanced prime because it is at equal distance from previous prime (264236104609) and next prime (264236104633).

It can be written as a sum of positive squares in only one way, i.e., 195177520521 + 69058584100 = 441789^2 + 262790^2 .

It is a cyclic number.

It is not a de Polignac number, because 264236104621 - 2⁹ = 264236104109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264236104661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132118052310 + 132118052311.

It is an arithmetic number, because the mean of its divisors is an integer number (132118052311).

Almost surely, 2^264236104621 is an apocalyptic number.

It is an amenable number.

264236104621 is a deficient number, since it is larger than the sum of its proper divisors (1).

264236104621 is an equidigital number, since it uses as much as digits as its factorization.

264236104621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 264236104621 in words is "two hundred sixty-four billion, two hundred thirty-six million, one hundred four thousand, six hundred twenty-one".