30930613619 has 2 divisors, whose sum is σ = 30930613620. Its totient is φ = 30930613618.

The previous prime is 30930613613. The next prime is 30930613621. The reversal of 30930613619 is 91631603903.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30930613619 is a prime.

It is a super-2 number, since 2×30930613619² (a number of 22 digits) contains 22 as substring.

Together with 30930613621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30930613613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15465306809 + 15465306810.

It is an arithmetic number, because the mean of its divisors is an integer number (15465306810).

Almost surely, 2^30930613619 is an apocalyptic number.

30930613619 is a deficient number, since it is larger than the sum of its proper divisors (1).

30930613619 is an equidigital number, since it uses as much as digits as its factorization.

30930613619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78732, while the sum is 41.

The spelling of 30930613619 in words is "thirty billion, nine hundred thirty million, six hundred thirteen thousand, six hundred nineteen".