42981931627247 has 16 divisors (see below), whose sum is σ = 43437004621920. Its totient is φ = 42529241382912.

The previous prime is 42981931627223. The next prime is 42981931627249. The reversal of 42981931627247 is 74272613918924.

42981931627247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42981931627247 - 2¹² = 42981931623151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42981931627249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301368029 + ... + 301510617.

It is an arithmetic number, because the mean of its divisors is an integer number (2714812788870).

Almost surely, 2^{42981931627247} is an apocalyptic number.

42981931627247 is a deficient number, since it is larger than the sum of its proper divisors (455072994673).

42981931627247 is a wasteful number, since it uses less digits than its factorization.

42981931627247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150922.

The product of its digits is 73156608, while the sum is 65.

The spelling of 42981931627247 in words is "forty-two trillion, nine hundred eighty-one billion, nine hundred thirty-one million, six hundred twenty-seven thousand, two hundred forty-seven".