30909393912 has 64 divisors (see below), whose sum is σ = 77663808000. Its totient is φ = 10251166464.

The previous prime is 30909393869. The next prime is 30909393961. The reversal of 30909393912 is 21939390903.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12497508 + ... + 12499980.

It is an arithmetic number, because the mean of its divisors is an integer number (1213497000).

Almost surely, 2^30909393912 is an apocalyptic number.

It is an amenable number.

30909393912 is an abundant number, since it is smaller than the sum of its proper divisors (46754414088).

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

30909393912 is a wasteful number, since it uses less digits than its factorization.

30909393912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4900 (or 4896 counting only the distinct ones).

The product of its (nonzero) digits is 354294, while the sum is 48.

The spelling of 30909393912 in words is "thirty billion, nine hundred nine million, three hundred ninety-three thousand, nine hundred twelve".