9489402782928 has 240 divisors, whose sum is σ = 27235599518400. Its totient is φ = 3083337861120.

The previous prime is 9489402782897. The next prime is 9489402782957. The reversal of 9489402782928 is 8292872049849.

9489402782928 is a `hidden beast` number, since 9 + 489 + 40 + 2 + 7 + 82 + 9 + 28 = 666.

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 47 ways as a sum of consecutive naturals, for example, 744903183 + ... + 744915921.

It is an arithmetic number, because the mean of its divisors is an integer number (113481664660).

Almost surely, 2^{9489402782928} 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 9489402782928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13617799759200).

9489402782928 is an abundant number, since it is smaller than the sum of its proper divisors (17746196735472).

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

9489402782928 is a wasteful number, since it uses less digits than its factorization.

9489402782928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13570 (or 13561 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 72.

The spelling of 9489402782928 in words is "nine trillion, four hundred eighty-nine billion, four hundred two million, seven hundred eighty-two thousand, nine hundred twenty-eight".