18328702001956 has 24 divisors (see below), whose sum is σ = 34251634448640. Its totient is φ = 8562908608800.

The previous prime is 18328702001941. The next prime is 18328702001957. The reversal of 18328702001956 is 65910020782381.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18328702001957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548481110 + ... + 2548488301.

It is an arithmetic number, because the mean of its divisors is an integer number (1427151435360).

Almost surely, 2^{18328702001956} is an apocalyptic number.

It is an amenable number.

18328702001956 is a deficient number, since it is larger than the sum of its proper divisors (15922932446684).

18328702001956 is a wasteful number, since it uses less digits than its factorization.

18328702001956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096969475 (or 5096969473 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 18328702001956 in words is "eighteen trillion, three hundred twenty-eight billion, seven hundred two million, one thousand, nine hundred fifty-six".