30491742618309 has 32 divisors (see below), whose sum is σ = 46594995323904. Its totient is φ = 17374647588480.

The previous prime is 30491742618277. The next prime is 30491742618319. The reversal of 30491742618309 is 90381624719403.

It is a happy number.

It is not a de Polignac number, because 30491742618309 - 2⁵ = 30491742618277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30491742618319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9914214 + ... + 12620424.

It is an arithmetic number, because the mean of its divisors is an integer number (1456093603872).

Almost surely, 2^{30491742618309} is an apocalyptic number.

It is an amenable number.

30491742618309 is a deficient number, since it is larger than the sum of its proper divisors (16103252705595).

30491742618309 is a wasteful number, since it uses less digits than its factorization.

30491742618309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2707737.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 30491742618309 in words is "thirty trillion, four hundred ninety-one billion, seven hundred forty-two million, six hundred eighteen thousand, three hundred nine".