11725623212018 has 4 divisors (see below), whose sum is σ = 17588434818030. Its totient is φ = 5862811606008.

The previous prime is 11725623211997. The next prime is 11725623212111. The reversal of 11725623212018 is 81021232652711.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 8491261956529 + 3234361255489 = 2913977^2 + 1798433^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2931405803003 + ... + 2931405803006.

Almost surely, 2^{11725623212018} is an apocalyptic number.

11725623212018 is a deficient number, since it is larger than the sum of its proper divisors (5862811606012).

11725623212018 is an equidigital number, since it uses as much as digits as its factorization.

11725623212018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5862811606011.

The product of its (nonzero) digits is 80640, while the sum is 41.

Adding to 11725623212018 its reverse (81021232652711), we get a palindrome (92746855864729).

The spelling of 11725623212018 in words is "eleven trillion, seven hundred twenty-five billion, six hundred twenty-three million, two hundred twelve thousand, eighteen".