30628923045040 has 20 divisors (see below), whose sum is σ = 71212246079904. Its totient is φ = 12251569217984.

The previous prime is 30628923045031. The next prime is 30628923045043. The reversal of 30628923045040 is 4054032982603.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (30628923045043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191430768952 + ... + 191430769111.

Almost surely, 2^{30628923045040} is an apocalyptic number.

It is an amenable number.

30628923045040 is an abundant number, since it is smaller than the sum of its proper divisors (40583323034864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30628923045040 is a wasteful number, since it uses less digits than its factorization.

30628923045040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382861538076 (or 382861538070 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 30628923045040 in words is "thirty trillion, six hundred twenty-eight billion, nine hundred twenty-three million, forty-five thousand, forty".