30400242737 has 2 divisors, whose sum is σ = 30400242738. Its totient is φ = 30400242736.

The previous prime is 30400242701. The next prime is 30400242751. The reversal of 30400242737 is 73724200403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25520382001 + 4879860736 = 159751^2 + 69856^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30400242737 is a prime.

It is not a weakly prime, because it can be changed into another prime (30400242767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15200121368 + 15200121369.

It is an arithmetic number, because the mean of its divisors is an integer number (15200121369).

Almost surely, 2^30400242737 is an apocalyptic number.

It is an amenable number.

30400242737 is a deficient number, since it is larger than the sum of its proper divisors (1).

30400242737 is an equidigital number, since it uses as much as digits as its factorization.

30400242737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 32.

The spelling of 30400242737 in words is "thirty billion, four hundred million, two hundred forty-two thousand, seven hundred thirty-seven".