72873655637827 has 8 divisors (see below), whose sum is σ = 80105392458432. Its totient is φ = 65743061989800.

The previous prime is 72873655637779. The next prime is 72873655637833.

72873655637827 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72873655637827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72873655637227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25285791633 + ... + 25285794514.

It is an arithmetic number, because the mean of its divisors is an integer number (10013174057304).

Almost surely, 2^{72873655637827} is an apocalyptic number.

72873655637827 is a deficient number, since it is larger than the sum of its proper divisors (7231736820605).

72873655637827 is a wasteful number, since it uses less digits than its factorization.

72873655637827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50571586289.

The product of its digits is 4978713600, while the sum is 76.

The spelling of 72873655637827 in words is "seventy-two trillion, eight hundred seventy-three billion, six hundred fifty-five million, six hundred thirty-seven thousand, eight hundred twenty-seven".