705047647251 has 16 divisors (see below), whose sum is σ = 948749964800. Its totient is φ = 465689111328.

The previous prime is 705047647247. The next prime is 705047647319. The reversal of 705047647251 is 152746740507.

It is not a de Polignac number, because 705047647251 - 2² = 705047647247 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 705047647251.

It is not an unprimeable number, because it can be changed into a prime (705047647201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5649990 + ... + 5773428.

It is an arithmetic number, because the mean of its divisors is an integer number (59296872800).

Almost surely, 2^705047647251 is an apocalyptic number.

705047647251 is a deficient number, since it is larger than the sum of its proper divisors (243702317549).

705047647251 is a wasteful number, since it uses less digits than its factorization.

705047647251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141018.

The product of its (nonzero) digits is 1646400, while the sum is 48.

The spelling of 705047647251 in words is "seven hundred five billion, forty-seven million, six hundred forty-seven thousand, two hundred fifty-one".