744388737461 has 2 divisors, whose sum is σ = 744388737462. Its totient is φ = 744388737460.

The previous prime is 744388737403. The next prime is 744388737479. The reversal of 744388737461 is 164737883447.

744388737461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 405788110225 + 338600627236 = 637015^2 + 581894^2 .

It is a cyclic number.

It is not a de Polignac number, because 744388737461 - 2⁶ = 744388737397 is a prime.

It is a super-2 number, since 2×744388737461² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 744388737394 and 744388737403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744388737361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372194368730 + 372194368731.

It is an arithmetic number, because the mean of its divisors is an integer number (372194368731).

Almost surely, 2^744388737461 is an apocalyptic number.

It is an amenable number.

744388737461 is a deficient number, since it is larger than the sum of its proper divisors (1).

744388737461 is an equidigital number, since it uses as much as digits as its factorization.

744388737461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75866112, while the sum is 62.

The spelling of 744388737461 in words is "seven hundred forty-four billion, three hundred eighty-eight million, seven hundred thirty-seven thousand, four hundred sixty-one".