40663227251 has 2 divisors, whose sum is σ = 40663227252. Its totient is φ = 40663227250.

The previous prime is 40663227247. The next prime is 40663227277. The reversal of 40663227251 is 15272236604.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40663227251 - 2² = 40663227247 is a prime.

It is not a weakly prime, because it can be changed into another prime (40663227151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20331613625 + 20331613626.

It is an arithmetic number, because the mean of its divisors is an integer number (20331613626).

Almost surely, 2^40663227251 is an apocalyptic number.

40663227251 is a deficient number, since it is larger than the sum of its proper divisors (1).

40663227251 is an equidigital number, since it uses as much as digits as its factorization.

40663227251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 40663227251 in words is "forty billion, six hundred sixty-three million, two hundred twenty-seven thousand, two hundred fifty-one".