2640144141841 has 2 divisors, whose sum is σ = 2640144141842. Its totient is φ = 2640144141840.

The previous prime is 2640144141743. The next prime is 2640144141857. The reversal of 2640144141841 is 1481414410462.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2631208410000 + 8935731841 = 1622100^2 + 94529^2 .

It is a cyclic number.

It is not a de Polignac number, because 2640144141841 - 2¹¹ = 2640144139793 is a prime.

It is a super-2 number, since 2×2640144141841² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2640144141794 and 2640144141803.

It is not a weakly prime, because it can be changed into another prime (2640144141871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320072070920 + 1320072070921.

It is an arithmetic number, because the mean of its divisors is an integer number (1320072070921).

Almost surely, 2^{2640144141841} is an apocalyptic number.

It is an amenable number.

2640144141841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640144141841 is an equidigital number, since it uses as much as digits as its factorization.

2640144141841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 98304, while the sum is 40.

The spelling of 2640144141841 in words is "two trillion, six hundred forty billion, one hundred forty-four million, one hundred forty-one thousand, eight hundred forty-one".