42735404187 has 24 divisors (see below), whose sum is σ = 72187974144. Its totient is φ = 23852317104.

The previous prime is 42735404149. The next prime is 42735404203. The reversal of 42735404187 is 78140453724.

42735404187 is a `hidden beast` number, since 4 + 27 + 3 + 540 + 4 + 1 + 87 = 666.

It is not a de Polignac number, because 42735404187 - 2⁶ = 42735404123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42735404147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7884963 + ... + 7890380.

It is an arithmetic number, because the mean of its divisors is an integer number (3007832256).

Almost surely, 2^42735404187 is an apocalyptic number.

42735404187 is a deficient number, since it is larger than the sum of its proper divisors (29452569957).

42735404187 is a wasteful number, since it uses less digits than its factorization.

42735404187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15775399 (or 15775396 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 42735404187 in words is "forty-two billion, seven hundred thirty-five million, four hundred four thousand, one hundred eighty-seven".