30605101992 has 128 divisors (see below), whose sum is σ = 85770864000. Its totient is φ = 10111288320.

The previous prime is 30605101949. The next prime is 30605101993. The reversal of 30605101992 is 29910150603.

30605101992 is a `hidden beast` number, since 30 + 605 + 1 + 0 + 19 + 9 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (30605101993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14161392 + ... + 14163552.

It is an arithmetic number, because the mean of its divisors is an integer number (670084875).

Almost surely, 2^30605101992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30605101992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42885432000).

30605101992 is an abundant number, since it is smaller than the sum of its proper divisors (55165762008).

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

30605101992 is a wasteful number, since it uses less digits than its factorization.

30605101992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2728 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The spelling of 30605101992 in words is "thirty billion, six hundred five million, one hundred one thousand, nine hundred ninety-two".