84540095009 has 4 divisors (see below), whose sum is σ = 87267194880. Its totient is φ = 81812995140.

The previous prime is 84540094913. The next prime is 84540095011. The reversal of 84540095009 is 90059004548.

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 not a de Polignac number, because 84540095009 - 2¹⁶ = 84540029473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84540098009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1363549889 + ... + 1363549950.

It is an arithmetic number, because the mean of its divisors is an integer number (21816798720).

Almost surely, 2^84540095009 is an apocalyptic number.

It is an amenable number.

84540095009 is a deficient number, since it is larger than the sum of its proper divisors (2727099871).

84540095009 is a wasteful number, since it uses less digits than its factorization.

84540095009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727099870.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 84540095009 in words is "eighty-four billion, five hundred forty million, ninety-five thousand, nine".