2547649999 has 2 divisors, whose sum is σ = 2547650000. Its totient is φ = 2547649998.

The previous prime is 2547649997. The next prime is 2547650023. The reversal of 2547649999 is 9999467452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2547649999 - 2¹ = 2547649997 is a prime.

Together with 2547649997, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2547649999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2547649997) 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 as a sum of consecutive naturals, namely, 1273824999 + 1273825000.

It is an arithmetic number, because the mean of its divisors is an integer number (1273825000).

Almost surely, 2^2547649999 is an apocalyptic number.

2547649999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2547649999 is an equidigital number, since it uses as much as digits as its factorization.

2547649999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44089920, while the sum is 64.

The square root of 2547649999 is about 50474.2508513004. The cubic root of 2547649999 is about 1365.7773973854. Note that the first 3 decimals are identical.

The spelling of 2547649999 in words is "two billion, five hundred forty-seven million, six hundred forty-nine thousand, nine hundred ninety-nine".