77055275767 has 4 divisors (see below), whose sum is σ = 79540929856. Its totient is φ = 74569621680.

The previous prime is 77055275753. The next prime is 77055275783. The reversal of 77055275767 is 76757255077.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77055275767 - 2¹¹ = 77055273719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77055275707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242826998 + ... + 1242827059.

It is an arithmetic number, because the mean of its divisors is an integer number (19885232464).

Almost surely, 2^77055275767 is an apocalyptic number.

77055275767 is a deficient number, since it is larger than the sum of its proper divisors (2485654089).

77055275767 is a wasteful number, since it uses less digits than its factorization.

77055275767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485654088.

The product of its (nonzero) digits is 25210500, while the sum is 58.

The spelling of 77055275767 in words is "seventy-seven billion, fifty-five million, two hundred seventy-five thousand, seven hundred sixty-seven".