42511012731667 has 4 divisors (see below), whose sum is σ = 42511123352560. Its totient is φ = 42510902110776.

The previous prime is 42511012731659. The next prime is 42511012731727. The reversal of 42511012731667 is 76613721011524.

42511012731667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42511012731667 - 2³ = 42511012731659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42511012731637) 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 3 ways as a sum of consecutive naturals, for example, 54731988 + ... + 55503265.

It is an arithmetic number, because the mean of its divisors is an integer number (10627780838140).

Almost surely, 2^{42511012731667} is an apocalyptic number.

42511012731667 is a deficient number, since it is larger than the sum of its proper divisors (110620893).

42511012731667 is a wasteful number, since it uses less digits than its factorization.

42511012731667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110620892.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 42511012731667 in words is "forty-two trillion, five hundred eleven billion, twelve million, seven hundred thirty-one thousand, six hundred sixty-seven".