2002498681 has 4 divisors (see below), whose sum is σ = 2002590864. Its totient is φ = 2002406500.

The previous prime is 2002498669. The next prime is 2002498721. The reversal of 2002498681 is 1868942002.

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 2002498681 - 2¹⁹ = 2001974393 is a prime.

It is a super-2 number, since 2×2002498681² = 8020001934813479522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002498601) 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, 6486 + ... + 63616.

It is an arithmetic number, because the mean of its divisors is an integer number (500647716).

Almost surely, 2^2002498681 is an apocalyptic number.

2002498681 is the 23920-th centered heptagonal number.

It is an amenable number.

2002498681 is a deficient number, since it is larger than the sum of its proper divisors (92183).

2002498681 is an equidigital number, since it uses as much as digits as its factorization.

2002498681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92182.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 2002498681 is about 44749.2869328663. The cubic root of 2002498681 is about 1260.4455216723.

The spelling of 2002498681 in words is "two billion, two million, four hundred ninety-eight thousand, six hundred eighty-one".