3724264350581 has 2 divisors, whose sum is σ = 3724264350582. Its totient is φ = 3724264350580.

The previous prime is 3724264350557. The next prime is 3724264350617. The reversal of 3724264350581 is 1850534624273.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3676169667556 + 48094683025 = 1917334^2 + 219305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3724264350581 is a prime.

It is a super-2 number, since 2×3724264350581² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3724264350511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1862132175290 + 1862132175291.

It is an arithmetic number, because the mean of its divisors is an integer number (1862132175291).

Almost surely, 2^{3724264350581} is an apocalyptic number.

It is an amenable number.

3724264350581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3724264350581 is an equidigital number, since it uses as much as digits as its factorization.

3724264350581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 3724264350581 in words is "three trillion, seven hundred twenty-four billion, two hundred sixty-four million, three hundred fifty thousand, five hundred eighty-one".