18068957571 has 16 divisors (see below), whose sum is σ = 27536083200. Its totient is φ = 10324206048.

The previous prime is 18068957551. The next prime is 18068957581. The reversal of 18068957571 is 17575986081.

It is not a de Polignac number, because 18068957571 - 2²² = 18064763267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18068957551) 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, 259300 + ... + 321518.

It is an arithmetic number, because the mean of its divisors is an integer number (1721005200).

Almost surely, 2^18068957571 is an apocalyptic number.

18068957571 is a deficient number, since it is larger than the sum of its proper divisors (9467125629).

18068957571 is a wasteful number, since it uses less digits than its factorization.

18068957571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76058.

The product of its (nonzero) digits is 4233600, while the sum is 57.

The spelling of 18068957571 in words is "eighteen billion, sixty-eight million, nine hundred fifty-seven thousand, five hundred seventy-one".