30252646649 has 4 divisors (see below), whose sum is σ = 31567979136. Its totient is φ = 28937314164.

The previous prime is 30252646643. The next prime is 30252646673. The reversal of 30252646649 is 94664625203.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30252646649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30252646643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657666209 + ... + 657666254.

It is an arithmetic number, because the mean of its divisors is an integer number (7891994784).

Almost surely, 2^30252646649 is an apocalyptic number.

It is an amenable number.

30252646649 is a deficient number, since it is larger than the sum of its proper divisors (1315332487).

30252646649 is a wasteful number, since it uses less digits than its factorization.

30252646649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315332486.

The product of its (nonzero) digits is 1866240, while the sum is 47.

The spelling of 30252646649 in words is "thirty billion, two hundred fifty-two million, six hundred forty-six thousand, six hundred forty-nine".