2494218961 has 4 divisors (see below), whose sum is σ = 2686081972. Its totient is φ = 2302355952.

The previous prime is 2494218941. The next prime is 2494218989. The reversal of 2494218961 is 1698124942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1698124942 = 2 ⋅849062471.

It can be written as a sum of positive squares in 2 ways, for example, as 1288810000 + 1205408961 = 35900^2 + 34719^2 .

It is not a de Polignac number, because 2494218961 - 2⁵ = 2494218929 is a prime.

It is a super-2 number, since 2×2494218961² = 12442256450823839042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2494218911) 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, 95931486 + ... + 95931511.

It is an arithmetic number, because the mean of its divisors is an integer number (671520493).

Almost surely, 2^2494218961 is an apocalyptic number.

It is an amenable number.

2494218961 is a deficient number, since it is larger than the sum of its proper divisors (191863011).

2494218961 is a wasteful number, since it uses less digits than its factorization.

2494218961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191863010.

The product of its digits is 248832, while the sum is 46.

The square root of 2494218961 is about 49942.1561508912. The cubic root of 2494218961 is about 1356.1618572801.

The spelling of 2494218961 in words is "two billion, four hundred ninety-four million, two hundred eighteen thousand, nine hundred sixty-one".