740666374456213 has 2 divisors, whose sum is σ = 740666374456214. Its totient is φ = 740666374456212.

The previous prime is 740666374456187. The next prime is 740666374456249. The reversal of 740666374456213 is 312654473666047.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 669958574739364 + 70707799716849 = 25883558^2 + 8408793^2 .

It is a cyclic number.

It is not a de Polignac number, because 740666374456213 - 2²⁹ = 740665837585301 is a prime.

It is a super-2 number, since 2×740666374456213² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (740666374456313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 370333187228106 + 370333187228107.

It is an arithmetic number, because the mean of its divisors is an integer number (370333187228107).

Almost surely, 2^{740666374456213} is an apocalyptic number.

It is an amenable number.

740666374456213 is a deficient number, since it is larger than the sum of its proper divisors (1).

740666374456213 is an equidigital number, since it uses as much as digits as its factorization.

740666374456213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 365783040, while the sum is 64.

The spelling of 740666374456213 in words is "seven hundred forty trillion, six hundred sixty-six billion, three hundred seventy-four million, four hundred fifty-six thousand, two hundred thirteen".