72861101206 has 4 divisors (see below), whose sum is σ = 109291651812. Its totient is φ = 36430550602.

The previous prime is 72861101177. The next prime is 72861101207. The reversal of 72861101206 is 60210116827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60210116827 = 7 ⋅8601445261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72861101207) 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 as a sum of consecutive naturals, namely, 18215275300 + ... + 18215275303.

It is an arithmetic number, because the mean of its divisors is an integer number (27322912953).

Almost surely, 2^72861101206 is an apocalyptic number.

72861101206 is a deficient number, since it is larger than the sum of its proper divisors (36430550606).

72861101206 is a wasteful number, since it uses less digits than its factorization.

72861101206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36430550605.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 72861101206 in words is "seventy-two billion, eight hundred sixty-one million, one hundred one thousand, two hundred six".