40002615325447 has 2 divisors, whose sum is σ = 40002615325448. Its totient is φ = 40002615325446.

The previous prime is 40002615325333. The next prime is 40002615325451. The reversal of 40002615325447 is 74452351620004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40002615325447 - 2⁷ = 40002615325319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40002615325847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20001307662723 + 20001307662724.

It is an arithmetic number, because the mean of its divisors is an integer number (20001307662724).

Almost surely, 2^{40002615325447} is an apocalyptic number.

40002615325447 is a deficient number, since it is larger than the sum of its proper divisors (1).

40002615325447 is an equidigital number, since it uses as much as digits as its factorization.

40002615325447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 806400, while the sum is 43.

The spelling of 40002615325447 in words is "forty trillion, two billion, six hundred fifteen million, three hundred twenty-five thousand, four hundred forty-seven".