709801781252 has 24 divisors (see below), whose sum is σ = 1315298345760. Its totient is φ = 334004711040.

The previous prime is 709801781209. The next prime is 709801781317. The reversal of 709801781252 is 252187108907.

It is a self number, because there is not a number n which added to its sum of digits gives 709801781252.

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 7 ways as a sum of consecutive naturals, for example, 890999 + ... + 1487777.

It is an arithmetic number, because the mean of its divisors is an integer number (54804097740).

Almost surely, 2^709801781252 is an apocalyptic number.

It is an amenable number.

709801781252 is a deficient number, since it is larger than the sum of its proper divisors (605496564508).

709801781252 is a wasteful number, since it uses less digits than its factorization.

709801781252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614291 (or 614289 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 709801781252 in words is "seven hundred nine billion, eight hundred one million, seven hundred eighty-one thousand, two hundred fifty-two".