445367811877 has 24 divisors (see below), whose sum is σ = 488155699584. Its totient is φ = 406020605952.

The previous prime is 445367811821. The next prime is 445367811901. The reversal of 445367811877 is 778118763544.

It is a happy number.

It is not a de Polignac number, because 445367811877 - 2²⁷ = 445233594149 is a prime.

It is a super-2 number, since 2×445367811877² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445367811277) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1148538 + ... + 1486564.

It is an arithmetic number, because the mean of its divisors is an integer number (20339820816).

Almost surely, 2^445367811877 is an apocalyptic number.

445367811877 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

445367811877 is a deficient number, since it is larger than the sum of its proper divisors (42787887707).

445367811877 is a wasteful number, since it uses less digits than its factorization.

445367811877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338205 (or 338188 counting only the distinct ones).

The product of its digits is 31610880, while the sum is 61.

The spelling of 445367811877 in words is "four hundred forty-five billion, three hundred sixty-seven million, eight hundred eleven thousand, eight hundred seventy-seven".