209746070192 has 40 divisors (see below), whose sum is σ = 408990407760. Its totient is φ = 104202259200.

The previous prime is 209746070189. The next prime is 209746070203. The reversal of 209746070192 is 291070647902.

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, 1540067 + ... + 1670717.

It is an arithmetic number, because the mean of its divisors is an integer number (10224760194).

Almost surely, 2^209746070192 is an apocalyptic number.

It is an amenable number.

209746070192 is a deficient number, since it is larger than the sum of its proper divisors (199244337568).

209746070192 is a wasteful number, since it uses less digits than its factorization.

209746070192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131301 (or 131295 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 209746070192 in words is "two hundred nine billion, seven hundred forty-six million, seventy thousand, one hundred ninety-two".