72080523727 has 4 divisors (see below), whose sum is σ = 72095933520. Its totient is φ = 72065113936.

The previous prime is 72080523721. The next prime is 72080523737. The reversal of 72080523727 is 72732508027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72732508027 = 3557 ⋅20447711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72080523727 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 (72080523721) 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, 7697878 + ... + 7707235.

It is an arithmetic number, because the mean of its divisors is an integer number (18023983380).

Almost surely, 2^72080523727 is an apocalyptic number.

72080523727 is a deficient number, since it is larger than the sum of its proper divisors (15409793).

72080523727 is a wasteful number, since it uses less digits than its factorization.

72080523727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15409792.

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 72080523727 in words is "seventy-two billion, eighty million, five hundred twenty-three thousand, seven hundred twenty-seven".