18641440970941 has 2 divisors, whose sum is σ = 18641440970942. Its totient is φ = 18641440970940.

The previous prime is 18641440970923. The next prime is 18641440971001. The reversal of 18641440970941 is 14907904414681.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18364901714041 + 276539256900 = 4285429^2 + 525870^2 .

It is a cyclic number.

It is not a de Polignac number, because 18641440970941 - 2⁷ = 18641440970813 is a prime.

It is a super-3 number, since 3×18641440970941³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18641420970941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9320720485470 + 9320720485471.

It is an arithmetic number, because the mean of its divisors is an integer number (9320720485471).

Almost surely, 2^{18641440970941} is an apocalyptic number.

It is an amenable number.

18641440970941 is a deficient number, since it is larger than the sum of its proper divisors (1).

18641440970941 is an equidigital number, since it uses as much as digits as its factorization.

18641440970941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 18641440970941 in words is "eighteen trillion, six hundred forty-one billion, four hundred forty million, nine hundred seventy thousand, nine hundred forty-one".