208747506672 has 50 divisors (see below), whose sum is σ = 604175850608. Its totient is φ = 69582501792.

The previous prime is 208747506661. The next prime is 208747506677. The reversal of 208747506672 is 276605747802.

208747506672 is a `hidden beast` number, since 2 + 0 + 8 + 74 + 7 + 506 + 67 + 2 = 666.

It is a super-3 number, since 3×208747506672³ (a number of 35 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208747506677) 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 9 ways as a sum of consecutive naturals, for example, 80534008 + ... + 80536599.

Almost surely, 2^208747506672 is an apocalyptic number.

It is an amenable number.

208747506672 is an abundant number, since it is smaller than the sum of its proper divisors (395428343936).

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

208747506672 is a wasteful number, since it uses less digits than its factorization.

208747506672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161070627 (or 161070612 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 208747506672 in words is "two hundred eight billion, seven hundred forty-seven million, five hundred six thousand, six hundred seventy-two".