77094971827 has 4 divisors (see below), whose sum is σ = 77095874896. Its totient is φ = 77094068760.

The previous prime is 77094971791. The next prime is 77094971971. The reversal of 77094971827 is 72817949077.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72817949077 = 113 ⋅644406629.

It is a cyclic number.

It is not a de Polignac number, because 77094971827 - 2⁷ = 77094971699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77094978827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308343 + ... + 499264.

It is an arithmetic number, because the mean of its divisors is an integer number (19273968724).

Almost surely, 2^77094971827 is an apocalyptic number.

77094971827 is a deficient number, since it is larger than the sum of its proper divisors (903069).

77094971827 is an equidigital number, since it uses as much as digits as its factorization.

77094971827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903068.

The product of its (nonzero) digits is 12446784, while the sum is 61.

The spelling of 77094971827 in words is "seventy-seven billion, ninety-four million, nine hundred seventy-one thousand, eight hundred twenty-seven".