77322361064 has 16 divisors (see below), whose sum is σ = 156131690820. Its totient is φ = 35687243520.

The previous prime is 77322361037. The next prime is 77322361073. The reversal of 77322361064 is 46016322377.

It can be written as a sum of positive squares in 2 ways, for example, as 75758158564 + 1564202500 = 275242^2 + 39550^2 .

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 3 ways as a sum of consecutive naturals, for example, 371742017 + ... + 371742224.

Almost surely, 2^77322361064 is an apocalyptic number.

It is an amenable number.

77322361064 is an abundant number, since it is smaller than the sum of its proper divisors (78809329756).

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

77322361064 is a wasteful number, since it uses less digits than its factorization.

77322361064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743484260 (or 743484256 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 77322361064 in words is "seventy-seven billion, three hundred twenty-two million, three hundred sixty-one thousand, sixty-four".