30780494489448 has 320 divisors, whose sum is σ = 94572138513600. Its totient is φ = 9275883540480.

The previous prime is 30780494489413. The next prime is 30780494489473. The reversal of 30780494489448 is 84498449408703.

30780494489448 is a `hidden beast` number, since 3 + 0 + 7 + 8 + 0 + 494 + 4 + 8 + 94 + 48 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1503163786 + ... + 1503184262.

It is an arithmetic number, because the mean of its divisors is an integer number (295537932855).

Almost surely, 2^{30780494489448} 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 30780494489448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47286069256800).

30780494489448 is an abundant number, since it is smaller than the sum of its proper divisors (63791644024152).

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

30780494489448 is a wasteful number, since it uses less digits than its factorization.

30780494489448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21662 (or 21649 counting only the distinct ones).

The product of its (nonzero) digits is 891813888, while the sum is 72.

The spelling of 30780494489448 in words is "thirty trillion, seven hundred eighty billion, four hundred ninety-four million, four hundred eighty-nine thousand, four hundred forty-eight".