72541572851 has 12 divisors (see below), whose sum is σ = 79908802512. Its totient is φ = 65803782000.

The previous prime is 72541572833. The next prime is 72541572923. The reversal of 72541572851 is 15827514527.

It is a happy number.

It is not a de Polignac number, because 72541572851 - 2¹⁰ = 72541571827 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72541572796 and 72541572805.

It is not an unprimeable number, because it can be changed into a prime (72541572811) 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 in 11 ways as a sum of consecutive naturals, for example, 594455 + ... + 706016.

It is an arithmetic number, because the mean of its divisors is an integer number (6659066876).

Almost surely, 2^72541572851 is an apocalyptic number.

72541572851 is a deficient number, since it is larger than the sum of its proper divisors (7367229661).

72541572851 is a wasteful number, since it uses less digits than its factorization.

72541572851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300954 (or 1300943 counting only the distinct ones).

The product of its digits is 784000, while the sum is 47.

The spelling of 72541572851 in words is "seventy-two billion, five hundred forty-one million, five hundred seventy-two thousand, eight hundred fifty-one".