16847401725 has 324 divisors, whose sum is σ = 39338021268. Its totient is φ = 6865689600.

The previous prime is 16847401699. The next prime is 16847401733. The reversal of 16847401725 is 52710474861.

16847401725 is a `hidden beast` number, since 1 + 6 + 8 + 474 + 0 + 172 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 292204836 + 16555196889 = 17094^2 + 128667^2 .

It is not a de Polignac number, because 16847401725 - 2⁶ = 16847401661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 323 ways as a sum of consecutive naturals, for example, 97383739 + ... + 97383911.

Almost surely, 2^16847401725 is an apocalyptic number.

16847401725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16847401725 is an abundant number, since it is smaller than the sum of its proper divisors (22490619543).

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

16847401725 is a wasteful number, since it uses less digits than its factorization.

16847401725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 16847401725 in words is "sixteen billion, eight hundred forty-seven million, four hundred one thousand, seven hundred twenty-five".