18033961411 has 2 divisors, whose sum is σ = 18033961412. Its totient is φ = 18033961410.

The previous prime is 18033961381. The next prime is 18033961433. The reversal of 18033961411 is 11416933081.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18033961411 - 2¹³ = 18033953219 is a prime.

It is a super-2 number, since 2×18033961411² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18033911411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9016980705 + 9016980706.

It is an arithmetic number, because the mean of its divisors is an integer number (9016980706).

Almost surely, 2^18033961411 is an apocalyptic number.

18033961411 is a deficient number, since it is larger than the sum of its proper divisors (1).

18033961411 is an equidigital number, since it uses as much as digits as its factorization.

18033961411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 18033961411 in words is "eighteen billion, thirty-three million, nine hundred sixty-one thousand, four hundred eleven".