30640056451 has 2 divisors, whose sum is σ = 30640056452. Its totient is φ = 30640056450.

The previous prime is 30640056443. The next prime is 30640056457. The reversal of 30640056451 is 15465004603.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30640056451 - 2³ = 30640056443 is a prime.

It is not a weakly prime, because it can be changed into another prime (30640056457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15320028225 + 15320028226.

It is an arithmetic number, because the mean of its divisors is an integer number (15320028226).

Almost surely, 2^30640056451 is an apocalyptic number.

30640056451 is a deficient number, since it is larger than the sum of its proper divisors (1).

30640056451 is an equidigital number, since it uses as much as digits as its factorization.

30640056451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 30640056451 in words is "thirty billion, six hundred forty million, fifty-six thousand, four hundred fifty-one".