30842212409 has 2 divisors, whose sum is σ = 30842212410. Its totient is φ = 30842212408.

The previous prime is 30842212399. The next prime is 30842212451. The reversal of 30842212409 is 90421224803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21046755625 + 9795456784 = 145075^2 + 98972^2 .

It is a cyclic number.

It is not a de Polignac number, because 30842212409 - 2²⁸ = 30573776953 is a prime.

It is not a weakly prime, because it can be changed into another prime (30842212109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15421106204 + 15421106205.

It is an arithmetic number, because the mean of its divisors is an integer number (15421106205).

Almost surely, 2^30842212409 is an apocalyptic number.

It is an amenable number.

30842212409 is a deficient number, since it is larger than the sum of its proper divisors (1).

30842212409 is an equidigital number, since it uses as much as digits as its factorization.

30842212409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 30842212409 in words is "thirty billion, eight hundred forty-two million, two hundred twelve thousand, four hundred nine".