77037775077771 has 12 divisors (see below), whose sum is σ = 111287383139920. Its totient is φ = 51353625834000.

The previous prime is 77037775077761. The next prime is 77037775077779. The reversal of 77037775077771 is 17777057773077.

77037775077771 is a `hidden beast` number, since 7 + 70 + 377 + 7 + 50 + 7 + 77 + 71 = 666.

It is not a de Polignac number, because 77037775077771 - 2⁷ = 77037775077643 is a prime.

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 77037775077771.

It is not an unprimeable number, because it can be changed into a prime (77037775077779) 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 11 ways as a sum of consecutive naturals, for example, 407473951 + ... + 407662968.

Almost surely, 2^{77037775077771} is an apocalyptic number.

77037775077771 is a deficient number, since it is larger than the sum of its proper divisors (34249608062149).

77037775077771 is a wasteful number, since it uses less digits than its factorization.

77037775077771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815147426 (or 815147423 counting only the distinct ones).

The product of its (nonzero) digits is 605304105, while the sum is 72.

The spelling of 77037775077771 in words is "seventy-seven trillion, thirty-seven billion, seven hundred seventy-five million, seventy-seven thousand, seven hundred seventy-one".