2361279649 has 3 divisors (see below), whose sum is σ = 2361328243. Its totient is φ = 2361231056.

The previous prime is 2361279623. The next prime is 2361279709. The reversal of 2361279649 is 9469721632.

The square root of 2361279649 is 48593.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1439064225 + 922215424 = 37935^2 + 30368^2 .

It is not a de Polignac number, because 2361279649 - 2¹⁹ = 2360755361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2361279619) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 24297 + ... + 72889.

Almost surely, 2^2361279649 is an apocalyptic number.

2361279649 is the 48593-rd square number.

2361279649 is the 24297-th centered octagonal number.

It is an amenable number.

2361279649 is a deficient number, since it is larger than the sum of its proper divisors (48594).

2361279649 is an frugal number, since it uses more digits than its factorization.

2361279649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97186 (or 48593 counting only the distinct ones).

The product of its digits is 979776, while the sum is 49.

The cubic root of 2361279649 is about 1331.6266394054.

Multiplying 2361279649 by its sum of digits (49), we get a square (115702702801 = 340151²).

The spelling of 2361279649 in words is "two billion, three hundred sixty-one million, two hundred seventy-nine thousand, six hundred forty-nine".