2469721893 has 4 divisors (see below), whose sum is σ = 3292962528. Its totient is φ = 1646481260.

The previous prime is 2469721819. The next prime is 2469721913. The reversal of 2469721893 is 3981279642.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2469721893 - 2¹⁷ = 2469590821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2469721493) 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, 411620313 + ... + 411620318.

It is an arithmetic number, because the mean of its divisors is an integer number (823240632).

Almost surely, 2^2469721893 is an apocalyptic number.

It is an amenable number.

2469721893 is a deficient number, since it is larger than the sum of its proper divisors (823240635).

2469721893 is an equidigital number, since it uses as much as digits as its factorization.

2469721893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823240634.

The product of its digits is 1306368, while the sum is 51.

The square root of 2469721893 is about 49696.2965722799. The cubic root of 2469721893 is about 1351.7073766303.

It can be divided in two parts, 246972 and 1893, that added together give a triangular number (248865 = T₇₀₅).

The spelling of 2469721893 in words is "two billion, four hundred sixty-nine million, seven hundred twenty-one thousand, eight hundred ninety-three".