18257207441 has 8 divisors (see below), whose sum is σ = 19965655200. Its totient is φ = 16556876640.

The previous prime is 18257207431. The next prime is 18257207447. The reversal of 18257207441 is 14470275281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18257207441 - 2⁶ = 18257207377 is a prime.

It is a super-4 number, since 4×18257207441⁴ (a number of 42 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18257207447) 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, 2024531 + ... + 2033528.

It is an arithmetic number, because the mean of its divisors is an integer number (2495706900).

Almost surely, 2^18257207441 is an apocalyptic number.

18257207441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18257207441 is a deficient number, since it is larger than the sum of its proper divisors (1708447759).

18257207441 is a wasteful number, since it uses less digits than its factorization.

18257207441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058479.

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 18257207441 in words is "eighteen billion, two hundred fifty-seven million, two hundred seven thousand, four hundred forty-one".