709847994420 has 48 divisors (see below), whose sum is σ = 2208415984320. Its totient is φ = 189292798368.

The previous prime is 709847994407. The next prime is 709847994461. The reversal of 709847994420 is 24499748907.

709847994420 is a `hidden beast` number, since 70 + 9 + 8 + 479 + 94 + 4 + 2 + 0 = 666.

It is a super-2 number, since 2×709847994420² (a number of 25 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 657266122 + ... + 657267201.

It is an arithmetic number, because the mean of its divisors is an integer number (46008666340).

Almost surely, 2^709847994420 is an apocalyptic number.

It is an amenable number.

709847994420 is an abundant number, since it is smaller than the sum of its proper divisors (1498567989900).

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

709847994420 is a wasteful number, since it uses less digits than its factorization.

709847994420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314533341 (or 1314533333 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 709847994420 in words is "seven hundred nine billion, eight hundred forty-seven million, nine hundred ninety-four thousand, four hundred twenty".