30408209707 has 2 divisors, whose sum is σ = 30408209708. Its totient is φ = 30408209706.

The previous prime is 30408209687. The next prime is 30408209731. The reversal of 30408209707 is 70790280403.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30408209707 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30408209707.

It is not a weakly prime, because it can be changed into another prime (30408239707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15204104853 + 15204104854.

It is an arithmetic number, because the mean of its divisors is an integer number (15204104854).

Almost surely, 2^30408209707 is an apocalyptic number.

30408209707 is a deficient number, since it is larger than the sum of its proper divisors (1).

30408209707 is an equidigital number, since it uses as much as digits as its factorization.

30408209707 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 30408209707 in words is "thirty billion, four hundred eight million, two hundred nine thousand, seven hundred seven".