77965896962 has 6 divisors (see below), whose sum is σ = 116949437769. Its totient is φ = 38982751040.

The previous prime is 77965896947. The next prime is 77965896971. The reversal of 77965896962 is 26969856977.

It can be written as a sum of positive squares in 2 ways, for example, as 77546097841 + 419799121 = 278471^2 + 20489^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=197441.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77965896962.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 296162 + ... + 493602.

Almost surely, 2^77965896962 is an apocalyptic number.

77965896962 is a deficient number, since it is larger than the sum of its proper divisors (38983540807).

77965896962 is an frugal number, since it uses more digits than its factorization.

77965896962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394884 (or 197443 counting only the distinct ones).

The product of its digits is 617258880, while the sum is 74.

The spelling of 77965896962 in words is "seventy-seven billion, nine hundred sixty-five million, eight hundred ninety-six thousand, nine hundred sixty-two".