745634506405 has 8 divisors (see below), whose sum is σ = 902970228600. Its totient is φ = 591035057856.

The previous prime is 745634506381. The next prime is 745634506417. The reversal of 745634506405 is 504605436547.

It can be written as a sum of positive squares in 4 ways, for example, as 122417413924 + 623217092481 = 349882^2 + 789441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 745634506405 - 2²⁹ = 745097635493 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684067810 + ... + 684068899.

It is an arithmetic number, because the mean of its divisors is an integer number (112871278575).

Almost surely, 2^745634506405 is an apocalyptic number.

It is an amenable number.

745634506405 is a deficient number, since it is larger than the sum of its proper divisors (157335722195).

745634506405 is a wasteful number, since it uses less digits than its factorization.

745634506405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368136823.

The product of its (nonzero) digits is 6048000, while the sum is 49.

The spelling of 745634506405 in words is "seven hundred forty-five billion, six hundred thirty-four million, five hundred six thousand, four hundred five".