208286947480 has 64 divisors (see below), whose sum is σ = 495145548000. Its totient is φ = 78636294144.

The previous prime is 208286947471. The next prime is 208286947487. The reversal of 208286947480 is 84749682802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208286947487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 304969 + ... + 713848.

Almost surely, 2^208286947480 is an apocalyptic number.

208286947480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208286947480 is an abundant number, since it is smaller than the sum of its proper divisors (286858600520).

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

208286947480 is a wasteful number, since it uses less digits than its factorization.

208286947480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019116 (or 1019112 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 58.

The spelling of 208286947480 in words is "two hundred eight billion, two hundred eighty-six million, nine hundred forty-seven thousand, four hundred eighty".