77403058605 has 12 divisors (see below), whose sum is σ = 134165301660. Its totient is φ = 41281631232.

The previous prime is 77403058517. The next prime is 77403058613. The reversal of 77403058605 is 50685030477.

77403058605 is a `hidden beast` number, since 7 + 7 + 4 + 0 + 30 + 5 + 8 + 605 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26369537769 + 51033520836 = 162387^2 + 225906^2 .

It is not a de Polignac number, because 77403058605 - 2¹⁶ = 77402993069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1720067969 = 77403058605 / (7 + 7 + 4 + 0 + 3 + 0 + 5 + 8 + 6 + 0 + 5).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 860033940 + ... + 860034029.

It is an arithmetic number, because the mean of its divisors is an integer number (11180441805).

Almost surely, 2^77403058605 is an apocalyptic number.

It is an amenable number.

77403058605 is a deficient number, since it is larger than the sum of its proper divisors (56762243055).

77403058605 is a wasteful number, since it uses less digits than its factorization.

77403058605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720067980 (or 1720067977 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 77403058605 in words is "seventy-seven billion, four hundred three million, fifty-eight thousand, six hundred five".