84091944975 has 24 divisors (see below), whose sum is σ = 141311236752. Its totient is φ = 44113804800.

The previous prime is 84091944947. The next prime is 84091945001. The reversal of 84091944975 is 57944919048.

It is not a de Polignac number, because 84091944975 - 2¹⁰ = 84091943951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9185802 + ... + 9194951.

It is an arithmetic number, because the mean of its divisors is an integer number (5887968198).

Almost surely, 2^84091944975 is an apocalyptic number.

84091944975 is a deficient number, since it is larger than the sum of its proper divisors (57219291777).

84091944975 is a wasteful number, since it uses less digits than its factorization.

84091944975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18380827 (or 18380822 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 60.

The spelling of 84091944975 in words is "eighty-four billion, ninety-one million, nine hundred forty-four thousand, nine hundred seventy-five".