2469493581 has 8 divisors (see below), whose sum is σ = 3293655264. Its totient is φ = 1645830480.

The previous prime is 2469493549. The next prime is 2469493597. The reversal of 2469493581 is 1853949642.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2469493581 - 2⁵ = 2469493549 is a prime.

It is a super-2 number, since 2×2469493581² = 12196797093200407122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2469493541) 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 7 ways as a sum of consecutive naturals, for example, 112930 + ... + 133011.

It is an arithmetic number, because the mean of its divisors is an integer number (411706908).

Almost surely, 2^2469493581 is an apocalyptic number.

It is an amenable number.

2469493581 is a deficient number, since it is larger than the sum of its proper divisors (824161683).

2469493581 is a wasteful number, since it uses less digits than its factorization.

2469493581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249291.

The product of its digits is 1866240, while the sum is 51.

The square root of 2469493581 is about 49693.9994466133. Note that the first 3 decimals coincide. The cubic root of 2469493581 is about 1351.6657227467.

The spelling of 2469493581 in words is "two billion, four hundred sixty-nine million, four hundred ninety-three thousand, five hundred eighty-one".