2190656973 has 32 divisors (see below), whose sum is σ = 3033169920. Its totient is φ = 1405454400.

The previous prime is 2190656971. The next prime is 2190656999. The reversal of 2190656973 is 3796560912.

It is not a de Polignac number, because 2190656973 - 2¹ = 2190656971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190656971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4989888 + ... + 4990326.

It is an arithmetic number, because the mean of its divisors is an integer number (94786560).

Almost surely, 2^2190656973 is an apocalyptic number.

It is an amenable number.

2190656973 is a deficient number, since it is larger than the sum of its proper divisors (842512947).

2190656973 is a wasteful number, since it uses less digits than its factorization.

2190656973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 969.

The product of its (nonzero) digits is 612360, while the sum is 48.

The square root of 2190656973 is about 46804.4546277382. The cubic root of 2190656973 is about 1298.7477039066.

The spelling of 2190656973 in words is "two billion, one hundred ninety million, six hundred fifty-six thousand, nine hundred seventy-three".