208487474887 has 8 divisors (see below), whose sum is σ = 225448284096. Its totient is φ = 192048536832.

The previous prime is 208487474807. The next prime is 208487474893. The reversal of 208487474887 is 788474784802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208487474887 - 2¹¹ = 208487472839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208487474807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130466958 + ... + 130468555.

It is an arithmetic number, because the mean of its divisors is an integer number (28181035512).

Almost surely, 2^208487474887 is an apocalyptic number.

208487474887 is a deficient number, since it is larger than the sum of its proper divisors (16960809209).

208487474887 is a wasteful number, since it uses less digits than its factorization.

208487474887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260935577.

The product of its (nonzero) digits is 179830784, while the sum is 67.

The spelling of 208487474887 in words is "two hundred eight billion, four hundred eighty-seven million, four hundred seventy-four thousand, eight hundred eighty-seven".