30909894811488 has 432 divisors, whose sum is σ = 114509500035840. Its totient is φ = 8028542396160.

The previous prime is 30909894811423. The next prime is 30909894811519. The reversal of 30909894811488 is 88411849890903.

30909894811488 is a `hidden beast` number, since 3 + 0 + 9 + 0 + 98 + 9 + 48 + 11 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4239733 + ... + 8932811.

It is an arithmetic number, because the mean of its divisors is an integer number (265068287120).

Almost surely, 2^{30909894811488} 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 30909894811488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57254750017920).

30909894811488 is an abundant number, since it is smaller than the sum of its proper divisors (83599605224352).

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

30909894811488 is a wasteful number, since it uses less digits than its factorization.

30909894811488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4693133 (or 4693102 counting only the distinct ones).

The product of its (nonzero) digits is 143327232, while the sum is 72.

The spelling of 30909894811488 in words is "thirty trillion, nine hundred nine billion, eight hundred ninety-four million, eight hundred eleven thousand, four hundred eighty-eight".