2547661460 has 24 divisors (see below), whose sum is σ = 5357560320. Its totient is φ = 1017641504.

The previous prime is 2547661439. The next prime is 2547661537. The reversal of 2547661460 is 641667452.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74204 + ... + 102963.

It is an arithmetic number, because the mean of its divisors is an integer number (223231680).

Almost surely, 2^2547661460 is an apocalyptic number.

2547661460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2547661460 is an abundant number, since it is smaller than the sum of its proper divisors (2809898860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2547661460 is a wasteful number, since it uses less digits than its factorization.

2547661460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177895 (or 177893 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 2547661460 is about 50474.3643843090. The cubic root of 2547661460 is about 1365.7794454364.

The spelling of 2547661460 in words is "two billion, five hundred forty-seven million, six hundred sixty-one thousand, four hundred sixty".