30109005972 has 36 divisors (see below), whose sum is σ = 76450192000. Its totient is φ = 9991326672.

The previous prime is 30109005961. The next prime is 30109005977. The reversal of 30109005972 is 27950090103.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30109005977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1867222 + ... + 1883277.

Almost surely, 2^30109005972 is an apocalyptic number.

It is an amenable number.

30109005972 is an abundant number, since it is smaller than the sum of its proper divisors (46341186028).

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

30109005972 is a wasteful number, since it uses less digits than its factorization.

30109005972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750732 (or 3750727 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The spelling of 30109005972 in words is "thirty billion, one hundred nine million, five thousand, nine hundred seventy-two".