77090865347 has 4 divisors (see below), whose sum is σ = 77283112296. Its totient is φ = 76898618400.

The previous prime is 77090865331. The next prime is 77090865353. The reversal of 77090865347 is 74356809077.

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 77090865347 - 2⁴ = 77090865331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77090865292 and 77090865301.

It is not an unprimeable number, because it can be changed into a prime (77090865307) 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, 96122873 + ... + 96123674.

It is an arithmetic number, because the mean of its divisors is an integer number (19320778074).

Almost surely, 2^77090865347 is an apocalyptic number.

77090865347 is a deficient number, since it is larger than the sum of its proper divisors (192246949).

77090865347 is a wasteful number, since it uses less digits than its factorization.

77090865347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192246948.

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 77090865347 in words is "seventy-seven billion, ninety million, eight hundred sixty-five thousand, three hundred forty-seven".