40808025601361 has 2 divisors, whose sum is σ = 40808025601362. Its totient is φ = 40808025601360.

The previous prime is 40808025601351. The next prime is 40808025601367. The reversal of 40808025601361 is 16310652080804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36949001087761 + 3859024513600 = 6078569^2 + 1964440^2 .

It is a cyclic number.

It is not a de Polignac number, because 40808025601361 - 2⁶ = 40808025601297 is a prime.

It is not a weakly prime, because it can be changed into another prime (40808025601367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20404012800680 + 20404012800681.

It is an arithmetic number, because the mean of its divisors is an integer number (20404012800681).

Almost surely, 2^{40808025601361} is an apocalyptic number.

It is an amenable number.

40808025601361 is a deficient number, since it is larger than the sum of its proper divisors (1).

40808025601361 is an equidigital number, since it uses as much as digits as its factorization.

40808025601361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 40808025601361 in words is "forty trillion, eight hundred eight billion, twenty-five million, six hundred one thousand, three hundred sixty-one".