77777600041 has 2 divisors, whose sum is σ = 77777600042. Its totient is φ = 77777600040.

The previous prime is 77777600039. The next prime is 77777600059. The reversal of 77777600041 is 14000677777.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39744409600 + 38033190441 = 199360^2 + 195021^2 .

It is a cyclic number.

It is not a de Polignac number, because 77777600041 - 2¹ = 77777600039 is a prime.

Together with 77777600039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 77777599964 and 77777600000.

It is not a weakly prime, because it can be changed into another prime (77777606041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38888800020 + 38888800021.

It is an arithmetic number, because the mean of its divisors is an integer number (38888800021).

Almost surely, 2^77777600041 is an apocalyptic number.

It is an amenable number.

77777600041 is a deficient number, since it is larger than the sum of its proper divisors (1).

77777600041 is an equidigital number, since it uses as much as digits as its factorization.

77777600041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403368, while the sum is 46.

The spelling of 77777600041 in words is "seventy-seven billion, seven hundred seventy-seven million, six hundred thousand, forty-one".