42003646775 has 24 divisors (see below), whose sum is σ = 52517759184. Its totient is φ = 33323763200.

The previous prime is 42003646759. The next prime is 42003646787. The reversal of 42003646775 is 57764630024.

It is not a de Polignac number, because 42003646775 - 2⁴ = 42003646759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6143759 + ... + 6150591.

It is an arithmetic number, because the mean of its divisors is an integer number (2188239966).

Almost surely, 2^42003646775 is an apocalyptic number.

42003646775 is a deficient number, since it is larger than the sum of its proper divisors (10514112409).

42003646775 is a wasteful number, since it uses less digits than its factorization.

42003646775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8851 (or 8846 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 44.

The spelling of 42003646775 in words is "forty-two billion, three million, six hundred forty-six thousand, seven hundred seventy-five".