42890065775 has 12 divisors (see below), whose sum is σ = 53856895200. Its totient is φ = 33877721280.

The previous prime is 42890065733. The next prime is 42890065783. The reversal of 42890065775 is 57756009824.

It is not a de Polignac number, because 42890065775 - 2⁶ = 42890065711 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10856270 + ... + 10860219.

It is an arithmetic number, because the mean of its divisors is an integer number (4488074600).

Almost surely, 2^42890065775 is an apocalyptic number.

42890065775 is a deficient number, since it is larger than the sum of its proper divisors (10966829425).

42890065775 is a wasteful number, since it uses less digits than its factorization.

42890065775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21716578 (or 21716573 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 53.

The spelling of 42890065775 in words is "forty-two billion, eight hundred ninety million, sixty-five thousand, seven hundred seventy-five".