72442443900139 has 2 divisors, whose sum is σ = 72442443900140. Its totient is φ = 72442443900138.

The previous prime is 72442443900131. The next prime is 72442443900217. The reversal of 72442443900139 is 93100934424427.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72442443900139 - 2³ = 72442443900131 is a prime.

It is not a weakly prime, because it can be changed into another prime (72442443900131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36221221950069 + 36221221950070.

It is an arithmetic number, because the mean of its divisors is an integer number (36221221950070).

Almost surely, 2^{72442443900139} is an apocalyptic number.

72442443900139 is a deficient number, since it is larger than the sum of its proper divisors (1).

72442443900139 is an equidigital number, since it uses as much as digits as its factorization.

72442443900139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 72442443900139 in words is "seventy-two trillion, four hundred forty-two billion, four hundred forty-three million, nine hundred thousand, one hundred thirty-nine".