2494078009 has 4 divisors (see below), whose sum is σ = 2494179216. Its totient is φ = 2493976804.

The previous prime is 2494078003. The next prime is 2494078021. The reversal of 2494078009 is 9008704942.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2494078009 - 2³ = 2494078001 is a prime.

It is a super-4 number, since 4×2494078009⁴ (a number of 39 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2494078001) 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, 13062 + ... + 71824.

It is an arithmetic number, because the mean of its divisors is an integer number (623544804).

Almost surely, 2^2494078009 is an apocalyptic number.

It is an amenable number.

2494078009 is a deficient number, since it is larger than the sum of its proper divisors (101207).

2494078009 is an equidigital number, since it uses as much as digits as its factorization.

2494078009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101206.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2494078009 is about 49940.7449784242. The cubic root of 2494078009 is about 1356.1363105618.

The spelling of 2494078009 in words is "two billion, four hundred ninety-four million, seventy-eight thousand, nine".