208730972460 has 96 divisors (see below), whose sum is σ = 606344175360. Its totient is φ = 53587195648.

The previous prime is 208730972453. The next prime is 208730972467. The reversal of 208730972460 is 64279037802.

208730972460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (208730972453) and next prime (208730972467).

It is not an unprimeable number, because it can be changed into a prime (208730972467) 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 31 ways as a sum of consecutive naturals, for example, 430927 + ... + 776633.

It is an arithmetic number, because the mean of its divisors is an integer number (6316085160).

Almost surely, 2^208730972460 is an apocalyptic number.

208730972460 is a gapful number since it is divisible by the number (20) 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 208730972460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303172087680).

208730972460 is an abundant number, since it is smaller than the sum of its proper divisors (397613202900).

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

208730972460 is a wasteful number, since it uses less digits than its factorization.

208730972460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346095 (or 346093 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 208730972460 in words is "two hundred eight billion, seven hundred thirty million, nine hundred seventy-two thousand, four hundred sixty".