42280011187787 has 4 divisors (see below), whose sum is σ = 42405471161976. Its totient is φ = 42154551213600.

The previous prime is 42280011187783. The next prime is 42280011187789. The reversal of 42280011187787 is 78778111008224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42280011187787 - 2² = 42280011187783 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42280011187783) 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 3 ways as a sum of consecutive naturals, for example, 62729986589 + ... + 62729987262.

It is an arithmetic number, because the mean of its divisors is an integer number (10601367790494).

Almost surely, 2^{42280011187787} is an apocalyptic number.

42280011187787 is a deficient number, since it is larger than the sum of its proper divisors (125459974189).

42280011187787 is a wasteful number, since it uses less digits than its factorization.

42280011187787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125459974188.

The product of its (nonzero) digits is 2809856, while the sum is 56.

The spelling of 42280011187787 in words is "forty-two trillion, two hundred eighty billion, eleven million, one hundred eighty-seven thousand, seven hundred eighty-seven".