712128336242 has 16 divisors (see below), whose sum is σ = 1072938339000. Its totient is φ = 354483087360.

The previous prime is 712128336239. The next prime is 712128336287. The reversal of 712128336242 is 242633821217.

It can be written as a sum of positive squares in 4 ways, for example, as 585471355921 + 126656980321 = 765161^2 + 355889^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 712128336242.

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, 1448234 + ... + 1876602.

Almost surely, 2^712128336242 is an apocalyptic number.

712128336242 is a deficient number, since it is larger than the sum of its proper divisors (360810002758).

712128336242 is a wasteful number, since it uses less digits than its factorization.

712128336242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432061.

The product of its digits is 193536, while the sum is 41.

The spelling of 712128336242 in words is "seven hundred twelve billion, one hundred twenty-eight million, three hundred thirty-six thousand, two hundred forty-two".