208728053475 has 96 divisors (see below), whose sum is σ = 368359756800. Its totient is φ = 103987152000.

The previous prime is 208728053467. The next prime is 208728053537. The reversal of 208728053475 is 574350827802.

It is not a de Polignac number, because 208728053475 - 2³ = 208728053467 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 73210800 + ... + 73213650.

It is an arithmetic number, because the mean of its divisors is an integer number (3837080800).

Almost surely, 2^208728053475 is an apocalyptic number.

208728053475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

208728053475 is a deficient number, since it is larger than the sum of its proper divisors (159631703325).

208728053475 is a wasteful number, since it uses less digits than its factorization.

208728053475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585 (or 3580 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 51.

The spelling of 208728053475 in words is "two hundred eight billion, seven hundred twenty-eight million, fifty-three thousand, four hundred seventy-five".