208466745428 has 12 divisors (see below), whose sum is σ = 364987056000. Its totient is φ = 104184729432.

The previous prime is 208466745401. The next prime is 208466745433. The reversal of 208466745428 is 824547664802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12151178 + ... + 12168321.

It is an arithmetic number, because the mean of its divisors is an integer number (30415588000).

Almost surely, 2^208466745428 is an apocalyptic number.

It is an amenable number.

208466745428 is a deficient number, since it is larger than the sum of its proper divisors (156520310572).

208466745428 is a wasteful number, since it uses less digits than its factorization.

208466745428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24321646 (or 24321644 counting only the distinct ones).

The product of its (nonzero) digits is 20643840, while the sum is 56.

The spelling of 208466745428 in words is "two hundred eight billion, four hundred sixty-six million, seven hundred forty-five thousand, four hundred twenty-eight".