42891967758 has 16 divisors (see below), whose sum is σ = 86747801040. Its totient is φ = 14136678336.

The previous prime is 42891967747. The next prime is 42891967763. The reversal of 42891967758 is 85776919824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40160485 + ... + 40161552.

It is an arithmetic number, because the mean of its divisors is an integer number (5421737565).

Almost surely, 2^42891967758 is an apocalyptic number.

42891967758 is an abundant number, since it is smaller than the sum of its proper divisors (43855833282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42891967758 is a wasteful number, since it uses less digits than its factorization.

42891967758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80322131.

The product of its digits is 60963840, while the sum is 66.

The spelling of 42891967758 in words is "forty-two billion, eight hundred ninety-one million, nine hundred sixty-seven thousand, seven hundred fifty-eight".