40320293249 has 2 divisors, whose sum is σ = 40320293250. Its totient is φ = 40320293248.

The previous prime is 40320293239. The next prime is 40320293257. The reversal of 40320293249 is 94239202304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39134730625 + 1185562624 = 197825^2 + 34432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40320293249 is a prime.

It is not a weakly prime, because it can be changed into another prime (40320293239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20160146624 + 20160146625.

It is an arithmetic number, because the mean of its divisors is an integer number (20160146625).

Almost surely, 2^40320293249 is an apocalyptic number.

It is an amenable number.

40320293249 is a deficient number, since it is larger than the sum of its proper divisors (1).

40320293249 is an equidigital number, since it uses as much as digits as its factorization.

40320293249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 38.

The spelling of 40320293249 in words is "forty billion, three hundred twenty million, two hundred ninety-three thousand, two hundred forty-nine".