184747438009872 has 240 divisors, whose sum is σ = 543790890472960. Its totient is φ = 58475607091200.

The previous prime is 184747438009859. The next prime is 184747438009913. The reversal of 184747438009872 is 278900834747481.

184747438009872 is a `hidden beast` number, since 1 + 8 + 4 + 7 + 474 + 3 + 80 + 0 + 9 + 8 + 72 = 666.

It is a super-2 number, since 2×184747438009872² (a number of 29 digits) contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 184747438009872.

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, 110542923 + ... + 112201749.

Almost surely, 2^{184747438009872} is an apocalyptic number.

184747438009872 is a gapful number since it is divisible by the number (12) 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 184747438009872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271895445236480).

184747438009872 is an abundant number, since it is smaller than the sum of its proper divisors (359043452463088).

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

184747438009872 is a wasteful number, since it uses less digits than its factorization.

184747438009872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659342 (or 1659333 counting only the distinct ones).

The product of its (nonzero) digits is 606928896, while the sum is 72.

The spelling of 184747438009872 in words is "one hundred eighty-four trillion, seven hundred forty-seven billion, four hundred thirty-eight million, nine thousand, eight hundred seventy-two".