2494570721 has 4 divisors (see below), whose sum is σ = 2495275200. Its totient is φ = 2493866244.

The previous prime is 2494570697. The next prime is 2494570723. The reversal of 2494570721 is 1270754942.

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 2494570721 - 2⁶ = 2494570657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2494570723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346901 + ... + 354018.

It is an arithmetic number, because the mean of its divisors is an integer number (623818800).

Almost surely, 2^2494570721 is an apocalyptic number.

It is an amenable number.

2494570721 is a deficient number, since it is larger than the sum of its proper divisors (704479).

2494570721 is an equidigital number, since it uses as much as digits as its factorization.

2494570721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704478.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 2494570721 is about 49945.6777008782. The cubic root of 2494570721 is about 1356.2256075065.

The spelling of 2494570721 in words is "two billion, four hundred ninety-four million, five hundred seventy thousand, seven hundred twenty-one".