18057240087986 has 32 divisors (see below), whose sum is σ = 29634879044736. Its totient is φ = 8183792752000.

The previous prime is 18057240087949. The next prime is 18057240088007. The reversal of 18057240087986 is 68978004275081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10972046 + ... + 12510006.

It is an arithmetic number, because the mean of its divisors is an integer number (926089970148).

Almost surely, 2^{18057240087986} is an apocalyptic number.

18057240087986 is a deficient number, since it is larger than the sum of its proper divisors (11577638956750).

18057240087986 is a wasteful number, since it uses less digits than its factorization.

18057240087986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539538.

The product of its (nonzero) digits is 54190080, while the sum is 65.

The spelling of 18057240087986 in words is "eighteen trillion, fifty-seven billion, two hundred forty million, eighty-seven thousand, nine hundred eighty-six".