2547606878 has 4 divisors (see below), whose sum is σ = 3821410320. Its totient is φ = 1273803438.

The previous prime is 2547606871. The next prime is 2547606883. The reversal of 2547606878 is 8786067452.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547606871) 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, 636901718 + ... + 636901721.

It is an arithmetic number, because the mean of its divisors is an integer number (955352580).

Almost surely, 2^2547606878 is an apocalyptic number.

2547606878 is a deficient number, since it is larger than the sum of its proper divisors (1273803442).

2547606878 is a wasteful number, since it uses less digits than its factorization.

2547606878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273803441.

The product of its (nonzero) digits is 4515840, while the sum is 53.

The square root of 2547606878 is about 50473.8236910975. The cubic root of 2547606878 is about 1365.7696917195.

The spelling of 2547606878 in words is "two billion, five hundred forty-seven million, six hundred six thousand, eight hundred seventy-eight".