2512738649 has 2 divisors, whose sum is σ = 2512738650. Its totient is φ = 2512738648.

The previous prime is 2512738609. The next prime is 2512738651. The reversal of 2512738649 is 9468372152.

2512738649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2388081424 + 124657225 = 48868^2 + 11165^2 .

It is a cyclic number.

It is not a de Polignac number, because 2512738649 - 2¹⁶ = 2512673113 is a prime.

Together with 2512738651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2512738609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256369324 + 1256369325.

It is an arithmetic number, because the mean of its divisors is an integer number (1256369325).

Almost surely, 2^2512738649 is an apocalyptic number.

It is an amenable number.

2512738649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2512738649 is an equidigital number, since it uses as much as digits as its factorization.

2512738649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The square root of 2512738649 is about 50127.2246289379. The cubic root of 2512738649 is about 1359.5101048747.

The spelling of 2512738649 in words is "two billion, five hundred twelve million, seven hundred thirty-eight thousand, six hundred forty-nine".