86397777941 has 2 divisors, whose sum is σ = 86397777942. Its totient is φ = 86397777940.

The previous prime is 86397777863. The next prime is 86397777943. The reversal of 86397777941 is 14977779368.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85576726225 + 821051716 = 292535^2 + 28654^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86397777941 is a prime.

Together with 86397777943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86397777943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43198888970 + 43198888971.

It is an arithmetic number, because the mean of its divisors is an integer number (43198888971).

Almost surely, 2^86397777941 is an apocalyptic number.

It is an amenable number.

86397777941 is a deficient number, since it is larger than the sum of its proper divisors (1).

86397777941 is an equidigital number, since it uses as much as digits as its factorization.

86397777941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112021056, while the sum is 68.

The spelling of 86397777941 in words is "eighty-six billion, three hundred ninety-seven million, seven hundred seventy-seven thousand, nine hundred forty-one".