85672940099 has 4 divisors (see below), whose sum is σ = 88436583360. Its totient is φ = 82909296840.

The previous prime is 85672940063. The next prime is 85672940117. The reversal of 85672940099 is 99004927658.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 85672940099 - 2³⁶ = 16953463363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85672940029) 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, 1381821584 + ... + 1381821645.

It is an arithmetic number, because the mean of its divisors is an integer number (22109145840).

Almost surely, 2^85672940099 is an apocalyptic number.

85672940099 is a deficient number, since it is larger than the sum of its proper divisors (2763643261).

85672940099 is a wasteful number, since it uses less digits than its factorization.

85672940099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763643260.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 85672940099 in words is "eighty-five billion, six hundred seventy-two million, nine hundred forty thousand, ninety-nine".