30925115840 has 28 divisors (see below), whose sum is σ = 73640432856. Its totient is φ = 12370046208.

The previous prime is 30925115801. The next prime is 30925115849. The reversal of 30925115840 is 4851152903.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30925115794 and 30925115803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30925115849) 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, 48320174 + ... + 48320813.

Almost surely, 2^30925115840 is an apocalyptic number.

It is an amenable number.

30925115840 is an abundant number, since it is smaller than the sum of its proper divisors (42715317016).

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

30925115840 is an equidigital number, since it uses as much as digits as its factorization.

30925115840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96641004 (or 96640994 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 38.

The spelling of 30925115840 in words is "thirty billion, nine hundred twenty-five million, one hundred fifteen thousand, eight hundred forty".