42577772844 has 24 divisors (see below), whose sum is σ = 99353775808. Its totient is φ = 14191785360.

The previous prime is 42577772837. The next prime is 42577772869. The reversal of 42577772844 is 44827777524.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143139 + ... + 325029.

Almost surely, 2^42577772844 is an apocalyptic number.

It is an amenable number.

42577772844 is an abundant number, since it is smaller than the sum of its proper divisors (56776002964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42577772844 is a wasteful number, since it uses less digits than its factorization.

42577772844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201405 (or 201403 counting only the distinct ones).

The product of its digits is 24586240, while the sum is 57.

The spelling of 42577772844 in words is "forty-two billion, five hundred seventy-seven million, seven hundred seventy-two thousand, eight hundred forty-four".