705137320272 has 160 divisors (see below), whose sum is σ = 2304989328384. Its totient is φ = 180418867200.

The previous prime is 705137320267. The next prime is 705137320291. The reversal of 705137320272 is 272023731507.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 705137320272.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1176129 + ... + 1671392.

Almost surely, 2^705137320272 is an apocalyptic number.

It is an amenable number.

705137320272 is an abundant number, since it is smaller than the sum of its proper divisors (1599852008112).

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

705137320272 is a wasteful number, since it uses less digits than its factorization.

705137320272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2847617 (or 2847611 counting only the distinct ones).

The product of its (nonzero) digits is 123480, while the sum is 39.

The spelling of 705137320272 in words is "seven hundred five billion, one hundred thirty-seven million, three hundred twenty thousand, two hundred seventy-two".