12072757579 has 4 divisors (see below), whose sum is σ = 12073010040. Its totient is φ = 12072505120.

The previous prime is 12072757577. The next prime is 12072757637. The reversal of 12072757579 is 97575727021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12072757579 - 2¹ = 12072757577 is a prime.

It is a super-2 number, since 2×12072757579² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12072757577) 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, 30094 + ... + 158275.

It is an arithmetic number, because the mean of its divisors is an integer number (3018252510).

Almost surely, 2^12072757579 is an apocalyptic number.

12072757579 is a deficient number, since it is larger than the sum of its proper divisors (252461).

12072757579 is an equidigital number, since it uses as much as digits as its factorization.

12072757579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252460.

The product of its (nonzero) digits is 2160900, while the sum is 52.

The spelling of 12072757579 in words is "twelve billion, seventy-two million, seven hundred fifty-seven thousand, five hundred seventy-nine".