72871038652 has 6 divisors (see below), whose sum is σ = 127524317648. Its totient is φ = 36435519324.

The previous prime is 72871038649. The next prime is 72871038661. The reversal of 72871038652 is 25683017827.

It is a junction number, because it is equal to n+sod(n) for n = 72871038596 and 72871038605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9108879828 + ... + 9108879835.

Almost surely, 2^72871038652 is an apocalyptic number.

It is an amenable number.

72871038652 is a deficient number, since it is larger than the sum of its proper divisors (54653278996).

72871038652 is a wasteful number, since it uses less digits than its factorization.

72871038652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18217759667 (or 18217759665 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 72871038652 in words is "seventy-two billion, eight hundred seventy-one million, thirty-eight thousand, six hundred fifty-two".