147678985728 has 320 divisors, whose sum is σ = 443350195200. Its totient is φ = 48533299200.

The previous prime is 147678985711. The next prime is 147678985733. The reversal of 147678985728 is 827589876741.

147678985728 is a `hidden beast` number, since 1 + 47 + 6 + 7 + 8 + 9 + 8 + 572 + 8 = 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 31 ways as a sum of consecutive naturals, for example, 548992378 + ... + 548992646.

It is an arithmetic number, because the mean of its divisors is an integer number (1385469360).

Almost surely, 2^147678985728 is an apocalyptic number.

147678985728 is a gapful number since it is divisible by the number (18) 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 147678985728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221675097600).

147678985728 is an abundant number, since it is smaller than the sum of its proper divisors (295671209472).

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

147678985728 is a wasteful number, since it uses less digits than its factorization.

147678985728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 688 counting only the distinct ones).

The product of its digits is 379330560, while the sum is 72.

The spelling of 147678985728 in words is "one hundred forty-seven billion, six hundred seventy-eight million, nine hundred eighty-five thousand, seven hundred twenty-eight".