42784145585 has 16 divisors (see below), whose sum is σ = 53220499200. Its totient is φ = 32979151296.

The previous prime is 42784145533. The next prime is 42784145609. The reversal of 42784145585 is 58554148724.

It is a cyclic number.

It is not a de Polignac number, because 42784145585 - 2¹² = 42784141489 is a prime.

It is a super-2 number, since 2×42784145585² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232325 + ... + 373554.

It is an arithmetic number, because the mean of its divisors is an integer number (3326281200).

Almost surely, 2^42784145585 is an apocalyptic number.

It is an amenable number.

42784145585 is a deficient number, since it is larger than the sum of its proper divisors (10436353615).

42784145585 is a wasteful number, since it uses less digits than its factorization.

42784145585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606400.

The product of its digits is 7168000, while the sum is 53.

The spelling of 42784145585 in words is "forty-two billion, seven hundred eighty-four million, one hundred forty-five thousand, five hundred eighty-five".