30517699115072 has 112 divisors (see below), whose sum is σ = 68056226071680. Its totient is φ = 13471944634368.

The previous prime is 30517699115051. The next prime is 30517699115089. The reversal of 30517699115072 is 27051199671503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30517699114999 and 30517699115017.

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, 475669748 + ... + 475733900.

It is an arithmetic number, because the mean of its divisors is an integer number (607644875640).

Almost surely, 2^{30517699115072} is an apocalyptic number.

30517699115072 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 30517699115072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34028113035840).

30517699115072 is an abundant number, since it is smaller than the sum of its proper divisors (37538526956608).

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

30517699115072 is a wasteful number, since it uses less digits than its factorization.

30517699115072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89060 (or 89050 counting only the distinct ones).

The product of its (nonzero) digits is 3572100, while the sum is 56.

The spelling of 30517699115072 in words is "thirty trillion, five hundred seventeen billion, six hundred ninety-nine million, one hundred fifteen thousand, seventy-two".