94747128840 has 768 divisors, whose sum is σ = 416210296320. Its totient is φ = 18811699200.

The previous prime is 94747128803. The next prime is 94747128841. The reversal of 94747128840 is 4882174749.

94747128840 is a `hidden beast` number, since 9 + 474 + 7 + 128 + 8 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (94747128841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15033690 + ... + 15039990.

It is an arithmetic number, because the mean of its divisors is an integer number (541940490).

Almost surely, 2^94747128840 is an apocalyptic number.

94747128840 is a gapful number since it is divisible by the number (90) 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 94747128840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208105148160).

94747128840 is an abundant number, since it is smaller than the sum of its proper divisors (321463167480).

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

94747128840 is a wasteful number, since it uses less digits than its factorization.

94747128840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364 (or 6348 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 94747128840 in words is "ninety-four billion, seven hundred forty-seven million, one hundred twenty-eight thousand, eight hundred forty".