2449649797 has 6 divisors (see below), whose sum is σ = 2849592678. Its totient is φ = 2099699784.

The previous prime is 2449649767. The next prime is 2449649801. The reversal of 2449649797 is 7979469442.

It can be written as a sum of positive squares in only one way, i.e., 1718434116 + 731215681 = 41454^2 + 27041^2 .

It is not a de Polignac number, because 2449649797 - 2⁷ = 2449649669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449649767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24996378 + ... + 24996475.

It is an arithmetic number, because the mean of its divisors is an integer number (474932113).

Almost surely, 2^2449649797 is an apocalyptic number.

It is an amenable number.

2449649797 is a deficient number, since it is larger than the sum of its proper divisors (399942881).

2449649797 is an equidigital number, since it uses as much as digits as its factorization.

2449649797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49992867 (or 49992860 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 61.

The square root of 2449649797 is about 49493.9369721181. The cubic root of 2449649797 is about 1348.0355143678.

The spelling of 2449649797 in words is "two billion, four hundred forty-nine million, six hundred forty-nine thousand, seven hundred ninety-seven".