209088022643 has 8 divisors (see below), whose sum is σ = 218790732528. Its totient is φ = 199598559264.

The previous prime is 209088022631. The next prime is 209088022699. The reversal of 209088022643 is 346220880902.

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 209088022643 - 2¹⁰ = 209088021619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 209088022594 and 209088022603.

It is not an unprimeable number, because it can be changed into a prime (209088022943) 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, 53309621 + ... + 53313542.

It is an arithmetic number, because the mean of its divisors is an integer number (27348841566).

Almost surely, 2^209088022643 is an apocalyptic number.

209088022643 is a deficient number, since it is larger than the sum of its proper divisors (9702709885).

209088022643 is a wasteful number, since it uses less digits than its factorization.

209088022643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106623253.

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 209088022643 in words is "two hundred nine billion, eighty-eight million, twenty-two thousand, six hundred forty-three".