18235961441 has 8 divisors (see below), whose sum is σ = 18325933344. Its totient is φ = 18146205280.

The previous prime is 18235961399. The next prime is 18235961449. The reversal of 18235961441 is 14416953281.

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 18235961441 - 2¹⁸ = 18235699297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18235961392 and 18235961401.

It is not an unprimeable number, because it can be changed into a prime (18235961449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116861 + ... + 223893.

It is an arithmetic number, because the mean of its divisors is an integer number (2290741668).

Almost surely, 2^18235961441 is an apocalyptic number.

It is an amenable number.

18235961441 is a deficient number, since it is larger than the sum of its proper divisors (89971903).

18235961441 is a wasteful number, since it uses less digits than its factorization.

18235961441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107871.

The product of its digits is 207360, while the sum is 44.

The spelling of 18235961441 in words is "eighteen billion, two hundred thirty-five million, nine hundred sixty-one thousand, four hundred forty-one".