745289340237 has 12 divisors (see below), whose sum is σ = 1159338973884. Its totient is φ = 458639593920.

The previous prime is 745289340227. The next prime is 745289340287. The reversal of 745289340237 is 732043982547.

It is a happy number.

745289340237 is a `hidden beast` number, since 7 + 4 + 528 + 93 + 4 + 0 + 23 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 144061238916 + 601228101321 = 379554^2 + 775389^2 .

It is not a de Polignac number, because 745289340237 - 2²³ = 745280951629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745289340227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3184997064 + ... + 3184997297.

It is an arithmetic number, because the mean of its divisors is an integer number (96611581157).

Almost surely, 2^745289340237 is an apocalyptic number.

It is an amenable number.

745289340237 is a deficient number, since it is larger than the sum of its proper divisors (414049633647).

745289340237 is a wasteful number, since it uses less digits than its factorization.

745289340237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6369994380 (or 6369994377 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 54.

The spelling of 745289340237 in words is "seven hundred forty-five billion, two hundred eighty-nine million, three hundred forty thousand, two hundred thirty-seven".