40273366391 has 2 divisors, whose sum is σ = 40273366392. Its totient is φ = 40273366390.

The previous prime is 40273366387. The next prime is 40273366451. The reversal of 40273366391 is 19366337204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40273366391 - 2² = 40273366387 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40273366291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20136683195 + 20136683196.

It is an arithmetic number, because the mean of its divisors is an integer number (20136683196).

Almost surely, 2^40273366391 is an apocalyptic number.

40273366391 is a deficient number, since it is larger than the sum of its proper divisors (1).

40273366391 is an equidigital number, since it uses as much as digits as its factorization.

40273366391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 44.

The spelling of 40273366391 in words is "forty billion, two hundred seventy-three million, three hundred sixty-six thousand, three hundred ninety-one".