84645992519 has 8 divisors (see below), whose sum is σ = 92350981008. Its totient is φ = 76942653760.

The previous prime is 84645992447. The next prime is 84645992569. The reversal of 84645992519 is 91529954648.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84645992519 - 2²⁸ = 84377557063 is a prime.

It is a super-2 number, since 2×84645992519² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84645992569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 303902 + ... + 511515.

It is an arithmetic number, because the mean of its divisors is an integer number (11543872626).

Almost surely, 2^84645992519 is an apocalyptic number.

84645992519 is a deficient number, since it is larger than the sum of its proper divisors (7704988489).

84645992519 is a wasteful number, since it uses less digits than its factorization.

84645992519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824865.

The product of its digits is 27993600, while the sum is 62.

The spelling of 84645992519 in words is "eighty-four billion, six hundred forty-five million, nine hundred ninety-two thousand, five hundred nineteen".