30899860992 has 1440 divisors, whose sum is σ = 130290098400. Its totient is φ = 7153090560.

The previous prime is 30899860973. The next prime is 30899861033. The reversal of 30899860992 is 29906899803.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1065512434 + ... + 1065512462.

It is an arithmetic number, because the mean of its divisors is an integer number (90479235).

Almost surely, 2^30899860992 is an apocalyptic number.

30899860992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30899860992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65145049200).

30899860992 is an abundant number, since it is smaller than the sum of its proper divisors (99390237408).

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

30899860992 is a wasteful number, since it uses less digits than its factorization.

30899860992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 63.

The spelling of 30899860992 in words is "thirty billion, eight hundred ninety-nine million, eight hundred sixty thousand, nine hundred ninety-two".