2161260473 has 24 divisors (see below), whose sum is σ = 2351849472. Its totient is φ = 1979074944.

The previous prime is 2161260427. The next prime is 2161260533. The reversal of 2161260473 is 3740621612.

It is not a de Polignac number, because 2161260473 - 2⁸ = 2161260217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2161260373) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9691640 + ... + 9691862.

It is an arithmetic number, because the mean of its divisors is an integer number (97993728).

Almost surely, 2^2161260473 is an apocalyptic number.

It is an amenable number.

2161260473 is a deficient number, since it is larger than the sum of its proper divisors (190588999).

2161260473 is a wasteful number, since it uses less digits than its factorization.

2161260473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2161260473 is about 46489.3587071278. The cubic root of 2161260473 is about 1292.9122101946.

The spelling of 2161260473 in words is "two billion, one hundred sixty-one million, two hundred sixty thousand, four hundred seventy-three".