745445061437 has 2 divisors, whose sum is σ = 745445061438. Its totient is φ = 745445061436.

The previous prime is 745445061391. The next prime is 745445061467. The reversal of 745445061437 is 734160544547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 545927399161 + 199517662276 = 738869^2 + 446674^2 .

It is an emirp because it is prime and its reverse (734160544547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 745445061437 - 2¹⁴ = 745445045053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (745445061467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372722530718 + 372722530719.

It is an arithmetic number, because the mean of its divisors is an integer number (372722530719).

Almost surely, 2^745445061437 is an apocalyptic number.

It is an amenable number.

745445061437 is a deficient number, since it is larger than the sum of its proper divisors (1).

745445061437 is an equidigital number, since it uses as much as digits as its factorization.

745445061437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5644800, while the sum is 50.

The spelling of 745445061437 in words is "seven hundred forty-five billion, four hundred forty-five million, sixty-one thousand, four hundred thirty-seven".