30890039287 has 2 divisors, whose sum is σ = 30890039288. Its totient is φ = 30890039286.

The previous prime is 30890039267. The next prime is 30890039291. The reversal of 30890039287 is 78293009803.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30890039287 - 2¹¹ = 30890037239 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30890039287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30890039207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15445019643 + 15445019644.

It is an arithmetic number, because the mean of its divisors is an integer number (15445019644).

Almost surely, 2^30890039287 is an apocalyptic number.

30890039287 is a deficient number, since it is larger than the sum of its proper divisors (1).

30890039287 is an equidigital number, since it uses as much as digits as its factorization.

30890039287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 30890039287 in words is "thirty billion, eight hundred ninety million, thirty-nine thousand, two hundred eighty-seven".