30621946028 has 6 divisors (see below), whose sum is σ = 53588405556. Its totient is φ = 15310973012.

The previous prime is 30621946027. The next prime is 30621946067. The reversal of 30621946028 is 82064912603.

It is not an unprimeable number, because it can be changed into a prime (30621946021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3827743250 + ... + 3827743257.

It is an arithmetic number, because the mean of its divisors is an integer number (8931400926).

Almost surely, 2^30621946028 is an apocalyptic number.

It is an amenable number.

30621946028 is a deficient number, since it is larger than the sum of its proper divisors (22966459528).

30621946028 is a wasteful number, since it uses less digits than its factorization.

30621946028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7655486511 (or 7655486509 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 30621946028 in words is "thirty billion, six hundred twenty-one million, nine hundred forty-six thousand, twenty-eight".