18745461014146 has 4 divisors (see below), whose sum is σ = 28118191521222. Its totient is φ = 9372730507072.

The previous prime is 18745461014053. The next prime is 18745461014153. The reversal of 18745461014146 is 64141016454781.

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., 12524981074225 + 6220479939921 = 3539065^2 + 2494089^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18745461014093 and 18745461014102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4686365253535 + ... + 4686365253538.

Almost surely, 2^{18745461014146} is an apocalyptic number.

18745461014146 is a deficient number, since it is larger than the sum of its proper divisors (9372730507076).

18745461014146 is an equidigital number, since it uses as much as digits as its factorization.

18745461014146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9372730507075.

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 18745461014146 in words is "eighteen trillion, seven hundred forty-five billion, four hundred sixty-one million, fourteen thousand, one hundred forty-six".