208937040745 has 8 divisors (see below), whose sum is σ = 263920472640. Its totient is φ = 158352283440.

The previous prime is 208937040733. The next prime is 208937040751. The reversal of 208937040745 is 547040739802.

It is a happy number.

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

It is not a de Polignac number, because 208937040745 - 2⁵ = 208937040713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099668541 + ... + 1099668730.

It is an arithmetic number, because the mean of its divisors is an integer number (32990059080).

Almost surely, 2^208937040745 is an apocalyptic number.

It is an amenable number.

208937040745 is a deficient number, since it is larger than the sum of its proper divisors (54983431895).

208937040745 is a wasteful number, since it uses less digits than its factorization.

208937040745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199337295.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 208937040745 in words is "two hundred eight billion, nine hundred thirty-seven million, forty thousand, seven hundred forty-five".