18507141441 has 16 divisors (see below), whose sum is σ = 27437896320. Its totient is φ = 12329135280.

The previous prime is 18507141437. The next prime is 18507141487. The reversal of 18507141441 is 14414170581.

It is a happy number.

18507141441 is a `hidden beast` number, since 1 + 8 + 507 + 1 + 4 + 144 + 1 = 666.

It is not a de Polignac number, because 18507141441 - 2² = 18507141437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18507141396 and 18507141405.

It is not an unprimeable number, because it can be changed into a prime (18507141491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210885 + ... + 285458.

It is an arithmetic number, because the mean of its divisors is an integer number (1714868520).

Almost surely, 2^18507141441 is an apocalyptic number.

It is an amenable number.

18507141441 is a deficient number, since it is larger than the sum of its proper divisors (8930754879).

18507141441 is a wasteful number, since it uses less digits than its factorization.

18507141441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497733 (or 497727 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The spelling of 18507141441 in words is "eighteen billion, five hundred seven million, one hundred forty-one thousand, four hundred forty-one".