2621153249 has 8 divisors (see below), whose sum is σ = 3079396992. Its totient is φ = 2199569040.

The previous prime is 2621153237. The next prime is 2621153251. The reversal of 2621153249 is 9423511262.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2621153249 - 2⁴ = 2621153233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2621153749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9164729 + ... + 9165014.

It is an arithmetic number, because the mean of its divisors is an integer number (384924624).

Almost surely, 2^2621153249 is an apocalyptic number.

It is an amenable number.

2621153249 is a deficient number, since it is larger than the sum of its proper divisors (458243743).

2621153249 is a wasteful number, since it uses less digits than its factorization.

2621153249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18329767.

The product of its digits is 25920, while the sum is 35.

The square root of 2621153249 is about 51197.1996206824. The cubic root of 2621153249 is about 1378.7879242092.

It can be divided in two parts, 262 and 1153249, that added together give a palindrome (1153511).

The spelling of 2621153249 in words is "two billion, six hundred twenty-one million, one hundred fifty-three thousand, two hundred forty-nine".