77084142472 has 16 divisors (see below), whose sum is σ = 144630380700. Its totient is φ = 38516040960.

The previous prime is 77084142449. The next prime is 77084142479. The reversal of 77084142472 is 27424148077.

It can be written as a sum of positive squares in 2 ways, for example, as 72773694756 + 4310447716 = 269766^2 + 65654^2 .

It is not an unprimeable number, because it can be changed into a prime (77084142479) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3241197 + ... + 3264892.

Almost surely, 2^77084142472 is an apocalyptic number.

It is an amenable number.

77084142472 is a deficient number, since it is larger than the sum of its proper divisors (67546238228).

77084142472 is a wasteful number, since it uses less digits than its factorization.

77084142472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6507576 (or 6507572 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 46.

The spelling of 77084142472 in words is "seventy-seven billion, eighty-four million, one hundred forty-two thousand, four hundred seventy-two".