40223173961939 has 2 divisors, whose sum is σ = 40223173961940. Its totient is φ = 40223173961938.

The previous prime is 40223173961903. The next prime is 40223173961963. The reversal of 40223173961939 is 93916937132204.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40223173961939 is a prime.

It is not a weakly prime, because it can be changed into another prime (40223173961989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111586980969 + 20111586980970.

It is an arithmetic number, because the mean of its divisors is an integer number (20111586980970).

Almost surely, 2^{40223173961939} is an apocalyptic number.

40223173961939 is a deficient number, since it is larger than the sum of its proper divisors (1).

40223173961939 is an equidigital number, since it uses as much as digits as its factorization.

40223173961939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13226976, while the sum is 59.

The spelling of 40223173961939 in words is "forty trillion, two hundred twenty-three billion, one hundred seventy-three million, nine hundred sixty-one thousand, nine hundred thirty-nine".