30628755013 has 2 divisors, whose sum is σ = 30628755014. Its totient is φ = 30628755012.

The previous prime is 30628754953. The next prime is 30628755037. The reversal of 30628755013 is 31055782603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25261287844 + 5367467169 = 158938^2 + 73263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30628755013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30628755413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15314377506 + 15314377507.

It is an arithmetic number, because the mean of its divisors is an integer number (15314377507).

Almost surely, 2^30628755013 is an apocalyptic number.

It is an amenable number.

30628755013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30628755013 is an equidigital number, since it uses as much as digits as its factorization.

30628755013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 30628755013 in words is "thirty billion, six hundred twenty-eight million, seven hundred fifty-five thousand, thirteen".