40121080825249 has 2 divisors, whose sum is σ = 40121080825250. Its totient is φ = 40121080825248.

The previous prime is 40121080825211. The next prime is 40121080825363. The reversal of 40121080825249 is 94252808012104.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39932035872400 + 189044952849 = 6319180^2 + 434793^2 .

It is a cyclic number.

It is not a de Polignac number, because 40121080825249 - 2⁷ = 40121080825121 is a prime.

It is a super-2 number, since 2×40121080825249² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40121080825199 and 40121080825208.

It is not a weakly prime, because it can be changed into another prime (40121080825549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20060540412624 + 20060540412625.

It is an arithmetic number, because the mean of its divisors is an integer number (20060540412625).

Almost surely, 2^{40121080825249} is an apocalyptic number.

It is an amenable number.

40121080825249 is a deficient number, since it is larger than the sum of its proper divisors (1).

40121080825249 is an equidigital number, since it uses as much as digits as its factorization.

40121080825249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 40121080825249 in words is "forty trillion, one hundred twenty-one billion, eighty million, eight hundred twenty-five thousand, two hundred forty-nine".