30823317479 has 2 divisors, whose sum is σ = 30823317480. Its totient is φ = 30823317478.

The previous prime is 30823317467. The next prime is 30823317517. The reversal of 30823317479 is 97471332803.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30823317479 - 2¹² = 30823313383 is a prime.

It is a super-2 number, since 2×30823317479² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30823317419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15411658739 + 15411658740.

It is an arithmetic number, because the mean of its divisors is an integer number (15411658740).

Almost surely, 2^30823317479 is an apocalyptic number.

30823317479 is a deficient number, since it is larger than the sum of its proper divisors (1).

30823317479 is an equidigital number, since it uses as much as digits as its factorization.

30823317479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 30823317479 in words is "thirty billion, eight hundred twenty-three million, three hundred seventeen thousand, four hundred seventy-nine".