2491622375 has 16 divisors (see below), whose sum is σ = 3392232480. Its totient is φ = 1812088000.

The previous prime is 2491622347. The next prime is 2491622387. The reversal of 2491622375 is 5732261942.

It is not a de Polignac number, because 2491622375 - 2¹⁰ = 2491621351 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 904670 + ... + 907419.

It is an arithmetic number, because the mean of its divisors is an integer number (212014530).

Almost surely, 2^2491622375 is an apocalyptic number.

2491622375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2491622375 is a deficient number, since it is larger than the sum of its proper divisors (900610105).

2491622375 is a wasteful number, since it uses less digits than its factorization.

2491622375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812115 (or 1812105 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 2491622375 is about 49916.1534475564. The cubic root of 2491622375 is about 1355.6910868537.

The spelling of 2491622375 in words is "two billion, four hundred ninety-one million, six hundred twenty-two thousand, three hundred seventy-five".