30354752749 has 2 divisors, whose sum is σ = 30354752750. Its totient is φ = 30354752748.

The previous prime is 30354752731. The next prime is 30354752761. The reversal of 30354752749 is 94725745303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29943879849 + 410872900 = 173043^2 + 20270^2 .

It is a cyclic number.

It is not a de Polignac number, because 30354752749 - 2²⁹ = 29817881837 is a prime.

It is a super-2 number, since 2×30354752749² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30354752249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15177376374 + 15177376375.

It is an arithmetic number, because the mean of its divisors is an integer number (15177376375).

Almost surely, 2^30354752749 is an apocalyptic number.

It is an amenable number.

30354752749 is a deficient number, since it is larger than the sum of its proper divisors (1).

30354752749 is an equidigital number, since it uses as much as digits as its factorization.

30354752749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 30354752749 in words is "thirty billion, three hundred fifty-four million, seven hundred fifty-two thousand, seven hundred forty-nine".