30627928393 has 2 divisors, whose sum is σ = 30627928394. Its totient is φ = 30627928392.

The previous prime is 30627928349. The next prime is 30627928417. The reversal of 30627928393 is 39382972603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18992422969 + 11635505424 = 137813^2 + 107868^2 .

It is a cyclic number.

It is not a de Polignac number, because 30627928393 - 2¹³ = 30627920201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30627928393.

It is not a weakly prime, because it can be changed into another prime (30627928993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15313964196 + 15313964197.

It is an arithmetic number, because the mean of its divisors is an integer number (15313964197).

Almost surely, 2^30627928393 is an apocalyptic number.

It is an amenable number.

30627928393 is a deficient number, since it is larger than the sum of its proper divisors (1).

30627928393 is an equidigital number, since it uses as much as digits as its factorization.

30627928393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 30627928393 in words is "thirty billion, six hundred twenty-seven million, nine hundred twenty-eight thousand, three hundred ninety-three".