30428039137 has 2 divisors, whose sum is σ = 30428039138. Its totient is φ = 30428039136.

The previous prime is 30428039113. The next prime is 30428039149. The reversal of 30428039137 is 73193082403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30398271201 + 29767936 = 174351^2 + 5456^2 .

It is a cyclic number.

It is not a de Polignac number, because 30428039137 - 2¹¹ = 30428037089 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30428039137.

It is not a weakly prime, because it can be changed into another prime (30428036137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15214019568 + 15214019569.

It is an arithmetic number, because the mean of its divisors is an integer number (15214019569).

Almost surely, 2^30428039137 is an apocalyptic number.

It is an amenable number.

30428039137 is a deficient number, since it is larger than the sum of its proper divisors (1).

30428039137 is an equidigital number, since it uses as much as digits as its factorization.

30428039137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 30428039137 in words is "thirty billion, four hundred twenty-eight million, thirty-nine thousand, one hundred thirty-seven".