705336264649 has 27 divisors (see below), whose sum is σ = 731842968493. Its totient is φ = 679782361688.

The previous prime is 705336264631. The next prime is 705336264667. The reversal of 705336264649 is 946462633507.

The square root of 705336264649 is 839843.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (705336264631) and next prime (705336264667).

It is not a de Polignac number, because 705336264649 - 2⁵ = 705336264617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 705336264649.

It is not an unprimeable number, because it can be changed into a prime (705336264679) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4223570364 + ... + 4223570530.

Almost surely, 2^705336264649 is an apocalyptic number.

705336264649 is the 839843-rd square number.

705336264649 is the 419922-nd centered octagonal number.

It is an amenable number.

705336264649 is a deficient number, since it is larger than the sum of its proper divisors (26506703844).

705336264649 is an frugal number, since it uses more digits than its factorization.

705336264649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 55.

The spelling of 705336264649 in words is "seven hundred five billion, three hundred thirty-six million, two hundred sixty-four thousand, six hundred forty-nine".