18061272746 has 16 divisors (see below), whose sum is σ = 29767439520. Its totient is φ = 8150605680.

The previous prime is 18061272707. The next prime is 18061272751. The reversal of 18061272746 is 64727216081.

It is a junction number, because it is equal to n+sod(n) for n = 18061272697 and 18061272706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2950061 + ... + 2956176.

It is an arithmetic number, because the mean of its divisors is an integer number (1860464970).

Almost surely, 2^18061272746 is an apocalyptic number.

18061272746 is a deficient number, since it is larger than the sum of its proper divisors (11706166774).

18061272746 is a wasteful number, since it uses less digits than its factorization.

18061272746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5906389.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 18061272746 in words is "eighteen billion, sixty-one million, two hundred seventy-two thousand, seven hundred forty-six".