84884576641 has 4 divisors (see below), whose sum is σ = 88575210432. Its totient is φ = 81193942852.

The previous prime is 84884576617. The next prime is 84884576677. The reversal of 84884576641 is 14667548848.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84884576641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84884576641.

It is not an unprimeable number, because it can be changed into a prime (84884576941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845316861 + ... + 1845316906.

It is an arithmetic number, because the mean of its divisors is an integer number (22143802608).

Almost surely, 2^84884576641 is an apocalyptic number.

It is an amenable number.

84884576641 is a deficient number, since it is larger than the sum of its proper divisors (3690633791).

84884576641 is a wasteful number, since it uses less digits than its factorization.

84884576641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690633790.

The product of its digits is 41287680, while the sum is 61.

The spelling of 84884576641 in words is "eighty-four billion, eight hundred eighty-four million, five hundred seventy-six thousand, six hundred forty-one".