2185470694 has 16 divisors (see below), whose sum is σ = 3621496320. Its totient is φ = 980820360.

The previous prime is 2185470659. The next prime is 2185470697. The reversal of 2185470694 is 4960745812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2185470697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626994 + ... + 630469.

It is an arithmetic number, because the mean of its divisors is an integer number (226343520).

Almost surely, 2^2185470694 is an apocalyptic number.

2185470694 is a deficient number, since it is larger than the sum of its proper divisors (1436025626).

2185470694 is a wasteful number, since it uses less digits than its factorization.

2185470694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257555.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 2185470694 is about 46749.0181073357. The cubic root of 2185470694 is about 1297.7219856724.

The spelling of 2185470694 in words is "two billion, one hundred eighty-five million, four hundred seventy thousand, six hundred ninety-four".