77823873307 has 2 divisors, whose sum is σ = 77823873308. Its totient is φ = 77823873306.

The previous prime is 77823873229. The next prime is 77823873343. The reversal of 77823873307 is 70337832877.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77823873307 - 2¹¹ = 77823871259 is a prime.

It is not a weakly prime, because it can be changed into another prime (77823873107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38911936653 + 38911936654.

It is an arithmetic number, because the mean of its divisors is an integer number (38911936654).

Almost surely, 2^77823873307 is an apocalyptic number.

77823873307 is a deficient number, since it is larger than the sum of its proper divisors (1).

77823873307 is an equidigital number, since it uses as much as digits as its factorization.

77823873307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8297856, while the sum is 55.

The spelling of 77823873307 in words is "seventy-seven billion, eight hundred twenty-three million, eight hundred seventy-three thousand, three hundred seven".