2547404866 has 16 divisors (see below), whose sum is σ = 3915797760. Its totient is φ = 1242162720.

The previous prime is 2547404857. The next prime is 2547404869. The reversal of 2547404866 is 6684047452.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2547404869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317395 + ... + 325321.

It is an arithmetic number, because the mean of its divisors is an integer number (244737360).

Almost surely, 2^2547404866 is an apocalyptic number.

2547404866 is a deficient number, since it is larger than the sum of its proper divisors (1368392894).

2547404866 is a wasteful number, since it uses less digits than its factorization.

2547404866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11889.

The product of its (nonzero) digits is 1290240, while the sum is 46.

The square root of 2547404866 is about 50471.8224953290. The cubic root of 2547404866 is about 1365.7335912832.

The spelling of 2547404866 in words is "two billion, five hundred forty-seven million, four hundred four thousand, eight hundred sixty-six".