208207043987 has 8 divisors (see below), whose sum is σ = 221424747600. Its totient is φ = 195215284224.

The previous prime is 208207043971. The next prime is 208207043999. The reversal of 208207043987 is 789340702802.

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 208207043987 - 2⁴ = 208207043971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (208207043917) 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, 56484062 + ... + 56487747.

It is an arithmetic number, because the mean of its divisors is an integer number (27678093450).

Almost surely, 2^208207043987 is an apocalyptic number.

208207043987 is a deficient number, since it is larger than the sum of its proper divisors (13217703613).

208207043987 is a wasteful number, since it uses less digits than its factorization.

208207043987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112971925.

The product of its (nonzero) digits is 1354752, while the sum is 50.

The spelling of 208207043987 in words is "two hundred eight billion, two hundred seven million, forty-three thousand, nine hundred eighty-seven".