742241969618 has 18 divisors (see below), whose sum is σ = 1175081761719. Its totient is φ = 351577335852.

The previous prime is 742241969617. The next prime is 742241969629. The reversal of 742241969618 is 816969142247.

It can be written as a sum of positive squares in only one way, i.e., 371120984809 + 371120984809 = 609197^2 + 609197^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=609197.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742241969611) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23133455 + ... + 23165517.

Almost surely, 2^742241969618 is an apocalyptic number.

742241969618 is a deficient number, since it is larger than the sum of its proper divisors (432839792101).

742241969618 is an frugal number, since it uses more digits than its factorization.

742241969618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64166 (or 32084 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The spelling of 742241969618 in words is "seven hundred forty-two billion, two hundred forty-one million, nine hundred sixty-nine thousand, six hundred eighteen".