445113177857 has 2 divisors, whose sum is σ = 445113177858. Its totient is φ = 445113177856.

The previous prime is 445113177851. The next prime is 445113177877. The reversal of 445113177857 is 758771311544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254105719921 + 191007457936 = 504089^2 + 437044^2 .

It is a cyclic number.

It is not a de Polignac number, because 445113177857 - 2⁴ = 445113177841 is a prime.

It is a super-2 number, since 2×445113177857² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 445113177799 and 445113177808.

It is not a weakly prime, because it can be changed into another prime (445113177851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222556588928 + 222556588929.

It is an arithmetic number, because the mean of its divisors is an integer number (222556588929).

Almost surely, 2^445113177857 is an apocalyptic number.

It is an amenable number.

445113177857 is a deficient number, since it is larger than the sum of its proper divisors (1).

445113177857 is an equidigital number, since it uses as much as digits as its factorization.

445113177857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3292800, while the sum is 53.

The spelling of 445113177857 in words is "four hundred forty-five billion, one hundred thirteen million, one hundred seventy-seven thousand, eight hundred fifty-seven".