40448471039 has 2 divisors, whose sum is σ = 40448471040. Its totient is φ = 40448471038.

The previous prime is 40448471033. The next prime is 40448471149. The reversal of 40448471039 is 93017484404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40448471039 - 2²⁸ = 40180035583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40448471033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20224235519 + 20224235520.

It is an arithmetic number, because the mean of its divisors is an integer number (20224235520).

Almost surely, 2^40448471039 is an apocalyptic number.

40448471039 is a deficient number, since it is larger than the sum of its proper divisors (1).

40448471039 is an equidigital number, since it uses as much as digits as its factorization.

40448471039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 40448471039 in words is "forty billion, four hundred forty-eight million, four hundred seventy-one thousand, thirty-nine".