677905410901 has 2 divisors, whose sum is σ = 677905410902. Its totient is φ = 677905410900.

The previous prime is 677905410811. The next prime is 677905410979. The reversal of 677905410901 is 109014509776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 461679480900 + 216225930001 = 679470^2 + 465001^2 .

It is a cyclic number.

It is not a de Polignac number, because 677905410901 - 2¹⁷ = 677905279829 is a prime.

It is a super-2 number, since 2×677905410901² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677905410001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338952705450 + 338952705451.

It is an arithmetic number, because the mean of its divisors is an integer number (338952705451).

Almost surely, 2^677905410901 is an apocalyptic number.

It is an amenable number.

677905410901 is a deficient number, since it is larger than the sum of its proper divisors (1).

677905410901 is an equidigital number, since it uses as much as digits as its factorization.

677905410901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 476280, while the sum is 49.

The spelling of 677905410901 in words is "six hundred seventy-seven billion, nine hundred five million, four hundred ten thousand, nine hundred one".