77771250773011 has 2 divisors, whose sum is σ = 77771250773012. Its totient is φ = 77771250773010.

The previous prime is 77771250772993. The next prime is 77771250773033. The reversal of 77771250773011 is 11037705217777.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77771250773011 - 2²¹ = 77771248675859 is a prime.

It is a super-2 number, since 2×77771250773011² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (77771250773071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38885625386505 + 38885625386506.

It is an arithmetic number, because the mean of its divisors is an integer number (38885625386506).

Almost surely, 2^{77771250773011} is an apocalyptic number.

77771250773011 is a deficient number, since it is larger than the sum of its proper divisors (1).

77771250773011 is an equidigital number, since it uses as much as digits as its factorization.

77771250773011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3529470, while the sum is 55.

The spelling of 77771250773011 in words is "seventy-seven trillion, seven hundred seventy-one billion, two hundred fifty million, seven hundred seventy-three thousand, eleven".