30909127640 has 32 divisors (see below), whose sum is σ = 69596534880. Its totient is φ = 12354584832.

The previous prime is 30909127633. The next prime is 30909127649. The reversal of 30909127640 is 4672190903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30909127649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227957 + ... + 337316.

It is an arithmetic number, because the mean of its divisors is an integer number (2174891715).

Almost surely, 2^30909127640 is an apocalyptic number.

It is an amenable number.

30909127640 is an abundant number, since it is smaller than the sum of its proper divisors (38687407240).

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

30909127640 is a wasteful number, since it uses less digits than its factorization.

30909127640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566651 (or 566647 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 41.

The spelling of 30909127640 in words is "thirty billion, nine hundred nine million, one hundred twenty-seven thousand, six hundred forty".