42243444402979 has 2 divisors, whose sum is σ = 42243444402980. Its totient is φ = 42243444402978.

The previous prime is 42243444402967. The next prime is 42243444403031. The reversal of 42243444402979 is 97920444434224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42243444402979 - 2²³ = 42243436014371 is a prime.

It is not a weakly prime, because it can be changed into another prime (42243444405979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21121722201489 + 21121722201490.

It is an arithmetic number, because the mean of its divisors is an integer number (21121722201490).

Almost surely, 2^{42243444402979} is an apocalyptic number.

42243444402979 is a deficient number, since it is larger than the sum of its proper divisors (1).

42243444402979 is an equidigital number, since it uses as much as digits as its factorization.

42243444402979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55738368, while the sum is 58.

The spelling of 42243444402979 in words is "forty-two trillion, two hundred forty-three billion, four hundred forty-four million, four hundred two thousand, nine hundred seventy-nine".