42086145945 has 16 divisors (see below), whose sum is σ = 67371600960. Its totient is φ = 22434688704.

The previous prime is 42086145943. The next prime is 42086145953. The reversal of 42086145945 is 54954168024.

It is not a de Polignac number, because 42086145945 - 2¹ = 42086145943 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42086145894 and 42086145903.

It is not an unprimeable number, because it can be changed into a prime (42086145943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672535 + ... + 732444.

It is an arithmetic number, because the mean of its divisors is an integer number (4210725060).

Almost surely, 2^42086145945 is an apocalyptic number.

It is an amenable number.

42086145945 is a deficient number, since it is larger than the sum of its proper divisors (25285455015).

42086145945 is a wasteful number, since it uses less digits than its factorization.

42086145945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1406984.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 42086145945 in words is "forty-two billion, eighty-six million, one hundred forty-five thousand, nine hundred forty-five".