77454842011 has 2 divisors, whose sum is σ = 77454842012. Its totient is φ = 77454842010.

The previous prime is 77454841993. The next prime is 77454842117. The reversal of 77454842011 is 11024845477.

It is a weak prime.

It is an emirp because it is prime and its reverse (11024845477) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77454842011 is a prime.

It is not a weakly prime, because it can be changed into another prime (77454842611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38727421005 + 38727421006.

It is an arithmetic number, because the mean of its divisors is an integer number (38727421006).

Almost surely, 2^77454842011 is an apocalyptic number.

77454842011 is a deficient number, since it is larger than the sum of its proper divisors (1).

77454842011 is an equidigital number, since it uses as much as digits as its factorization.

77454842011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250880, while the sum is 43.

The spelling of 77454842011 in words is "seventy-seven billion, four hundred fifty-four million, eight hundred forty-two thousand, eleven".