77732086661384 has 16 divisors (see below), whose sum is σ = 146590134530220. Its totient is φ = 38641384120000.

The previous prime is 77732086661351. The next prime is 77732086661387. The reversal of 77732086661384 is 48316668023777.

It can be written as a sum of positive squares in 2 ways, for example, as 77055215172100 + 676871489284 = 8778110^2 + 822722^2 .

It is a super-3 number, since 3×77732086661384³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (77732086661387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28082399867 + ... + 28082402634.

Almost surely, 2^{77732086661384} is an apocalyptic number.

It is an amenable number.

77732086661384 is a deficient number, since it is larger than the sum of its proper divisors (68858047868836).

77732086661384 is a wasteful number, since it uses less digits than its factorization.

77732086661384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56164802680 (or 56164802676 counting only the distinct ones).

The product of its (nonzero) digits is 341397504, while the sum is 68.

The spelling of 77732086661384 in words is "seventy-seven trillion, seven hundred thirty-two billion, eighty-six million, six hundred sixty-one thousand, three hundred eighty-four".