2190895463 has 4 divisors (see below), whose sum is σ = 2199226128. Its totient is φ = 2182564800.

The previous prime is 2190895411. The next prime is 2190895523. The reversal of 2190895463 is 3645980912.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2190895463 - 2⁸ = 2190895207 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 (2190895163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4164938 + ... + 4165463.

It is an arithmetic number, because the mean of its divisors is an integer number (549806532).

Almost surely, 2^2190895463 is an apocalyptic number.

2190895463 is a deficient number, since it is larger than the sum of its proper divisors (8330665).

2190895463 is an equidigital number, since it uses as much as digits as its factorization.

2190895463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8330664.

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 2190895463 is about 46807.0022859828. The cubic root of 2190895463 is about 1298.7948324019.

The spelling of 2190895463 in words is "two billion, one hundred ninety million, eight hundred ninety-five thousand, four hundred sixty-three".