742144124357989 has 2 divisors, whose sum is σ = 742144124357990. Its totient is φ = 742144124357988.

The previous prime is 742144124357981. The next prime is 742144124358023. The reversal of 742144124357989 is 989753421441247.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 511033134905764 + 231110989452225 = 22606042^2 + 15202335^2 .

It is a cyclic number.

It is not a de Polignac number, because 742144124357989 - 2³ = 742144124357981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (742144124357981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371072062178994 + 371072062178995.

It is an arithmetic number, because the mean of its divisors is an integer number (371072062178995).

Almost surely, 2^{742144124357989} is an apocalyptic number.

It is an amenable number.

742144124357989 is a deficient number, since it is larger than the sum of its proper divisors (1).

742144124357989 is an equidigital number, since it uses as much as digits as its factorization.

742144124357989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 487710720, while the sum is 70.

The spelling of 742144124357989 in words is "seven hundred forty-two trillion, one hundred forty-four billion, one hundred twenty-four million, three hundred fifty-seven thousand, nine hundred eighty-nine".