2623492491 has 4 divisors (see below), whose sum is σ = 3497989992. Its totient is φ = 1748994992.

The previous prime is 2623492481. The next prime is 2623492499. The reversal of 2623492491 is 1942943262.

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 2623492491 - 2¹⁹ = 2622968203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2623492499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437248746 + ... + 437248751.

It is an arithmetic number, because the mean of its divisors is an integer number (874497498).

Almost surely, 2^2623492491 is an apocalyptic number.

2623492491 is a deficient number, since it is larger than the sum of its proper divisors (874497501).

2623492491 is an equidigital number, since it uses as much as digits as its factorization.

2623492491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874497500.

The product of its digits is 186624, while the sum is 42.

The square root of 2623492491 is about 51220.0399355565. The cubic root of 2623492491 is about 1379.1979675902.

The spelling of 2623492491 in words is "two billion, six hundred twenty-three million, four hundred ninety-two thousand, four hundred ninety-one".