1680049475 has 12 divisors (see below), whose sum is σ = 2243512656. Its totient is φ = 1240651680.

The previous prime is 1680049457. The next prime is 1680049477. The reversal of 1680049475 is 5749400861.

It is not a de Polignac number, because 1680049475 - 2⁶ = 1680049411 is a prime.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1680049477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2584367 + ... + 2585016.

It is an arithmetic number, because the mean of its divisors is an integer number (186959388).

Almost surely, 2^1680049475 is an apocalyptic number.

1680049475 is a deficient number, since it is larger than the sum of its proper divisors (563463181).

1680049475 is a wasteful number, since it uses less digits than its factorization.

1680049475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5169406 (or 5169401 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 1680049475 is about 40988.4065925964. The cubic root of 1680049475 is about 1188.7960601023.

The spelling of 1680049475 in words is "one billion, six hundred eighty million, forty-nine thousand, four hundred seventy-five".