72825837231 has 16 divisors (see below), whose sum is σ = 111117036800. Its totient is φ = 41560639488.

The previous prime is 72825837229. The next prime is 72825837241. The reversal of 72825837231 is 13273852827.

It is not a de Polignac number, because 72825837231 - 2¹ = 72825837229 is a prime.

It is a super-2 number, since 2×72825837231² (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 (72825837221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2238661 + ... + 2270958.

It is an arithmetic number, because the mean of its divisors is an integer number (6944814800).

Almost surely, 2^72825837231 is an apocalyptic number.

72825837231 is a deficient number, since it is larger than the sum of its proper divisors (38291199569).

72825837231 is a wasteful number, since it uses less digits than its factorization.

72825837231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510398.

The product of its digits is 1128960, while the sum is 48.

The spelling of 72825837231 in words is "seventy-two billion, eight hundred twenty-five million, eight hundred thirty-seven thousand, two hundred thirty-one".