72580271791 has 4 divisors (see below), whose sum is σ = 72580892400. Its totient is φ = 72579651184.

The previous prime is 72580271789. The next prime is 72580271849. The reversal of 72580271791 is 19717208527.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 72580271791 - 2¹ = 72580271789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72580271761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75811 + ... + 388468.

It is an arithmetic number, because the mean of its divisors is an integer number (18145223100).

Almost surely, 2^72580271791 is an apocalyptic number.

72580271791 is a deficient number, since it is larger than the sum of its proper divisors (620609).

72580271791 is a wasteful number, since it uses less digits than its factorization.

72580271791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620608.

The product of its (nonzero) digits is 493920, while the sum is 49.

The spelling of 72580271791 in words is "seventy-two billion, five hundred eighty million, two hundred seventy-one thousand, seven hundred ninety-one".