745740436322 has 54 divisors (see below), whose sum is σ = 1318361841099. Its totient is φ = 315451974600.

The previous prime is 745740436307. The next prime is 745740436349. The reversal of 745740436322 is 223634047547.

It can be written as a sum of positive squares in only one way, i.e., 372870218161 + 372870218161 = 610631^2 + 610631^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=610631.

It is a super-2 number, since 2×745740436322² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 709552697 + ... + 709553747.

Almost surely, 2^745740436322 is an apocalyptic number.

745740436322 is a deficient number, since it is larger than the sum of its proper divisors (572621404777).

745740436322 is an frugal number, since it uses more digits than its factorization.

745740436322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 1143 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 47.

The spelling of 745740436322 in words is "seven hundred forty-five billion, seven hundred forty million, four hundred thirty-six thousand, three hundred twenty-two".