208690192043 has 8 divisors (see below), whose sum is σ = 209227070112. Its totient is φ = 208153665216.

The previous prime is 208690191967. The next prime is 208690192069. The reversal of 208690192043 is 340291096802.

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 208690192043 - 2³⁴ = 191510322859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 208690191985 and 208690192003.

It is not an unprimeable number, because it can be changed into a prime (208690192643) 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, 1123421 + ... + 1295937.

It is an arithmetic number, because the mean of its divisors is an integer number (26153383764).

Almost surely, 2^208690192043 is an apocalyptic number.

208690192043 is a deficient number, since it is larger than the sum of its proper divisors (536878069).

208690192043 is a wasteful number, since it uses less digits than its factorization.

208690192043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175621.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 208690192043 in words is "two hundred eight billion, six hundred ninety million, one hundred ninety-two thousand, forty-three".