745209269805 has 768 divisors, whose sum is σ = 1782345793536. Its totient is φ = 260640737280.

The previous prime is 745209269797. The next prime is 745209269821. The reversal of 745209269805 is 508962902547.

It is not a de Polignac number, because 745209269805 - 2³ = 745209269797 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 6964572562 + ... + 6964572668.

It is an arithmetic number, because the mean of its divisors is an integer number (2320762752).

Almost surely, 2^745209269805 is an apocalyptic number.

It is an amenable number.

745209269805 is an abundant number, since it is smaller than the sum of its proper divisors (1037136523731).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

745209269805 is a wasteful number, since it uses less digits than its factorization.

745209269805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 745209269805 in words is "seven hundred forty-five billion, two hundred nine million, two hundred sixty-nine thousand, eight hundred five".