208436874988 has 6 divisors (see below), whose sum is σ = 364764531236. Its totient is φ = 104218437492.

The previous prime is 208436874977. The next prime is 208436875019. The reversal of 208436874988 is 889478634802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26054609370 + ... + 26054609377.

Almost surely, 2^208436874988 is an apocalyptic number.

It is an amenable number.

208436874988 is a deficient number, since it is larger than the sum of its proper divisors (156327656248).

208436874988 is a wasteful number, since it uses less digits than its factorization.

208436874988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52109218751 (or 52109218749 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 67.

The spelling of 208436874988 in words is "two hundred eight billion, four hundred thirty-six million, eight hundred seventy-four thousand, nine hundred eighty-eight".