427696498777 has 2 divisors, whose sum is σ = 427696498778. Its totient is φ = 427696498776.

The previous prime is 427696498771. The next prime is 427696498787. The reversal of 427696498777 is 777894696724.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371491469001 + 56205029776 = 609501^2 + 237076^2 .

It is a cyclic number.

It is not a de Polignac number, because 427696498777 - 2²³ = 427688110169 is a prime.

It is a super-2 number, since 2×427696498777² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (427696498771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213848249388 + 213848249389.

It is an arithmetic number, because the mean of its divisors is an integer number (213848249389).

Almost surely, 2^427696498777 is an apocalyptic number.

It is an amenable number.

427696498777 is a deficient number, since it is larger than the sum of its proper divisors (1).

427696498777 is an equidigital number, since it uses as much as digits as its factorization.

427696498777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792336896, while the sum is 76.

The spelling of 427696498777 in words is "four hundred twenty-seven billion, six hundred ninety-six million, four hundred ninety-eight thousand, seven hundred seventy-seven".