2678531604 has 24 divisors (see below), whose sum is σ = 7142751168. Its totient is φ = 765294720.

The previous prime is 2678531591. The next prime is 2678531623. The reversal of 2678531604 is 4061358762.

2678531604 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15943557 + ... + 15943724.

It is an arithmetic number, because the mean of its divisors is an integer number (297614632).

Almost surely, 2^2678531604 is an apocalyptic number.

It is an amenable number.

2678531604 is an abundant number, since it is smaller than the sum of its proper divisors (4464219564).

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

2678531604 is a wasteful number, since it uses less digits than its factorization.

2678531604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31887295 (or 31887293 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2678531604 is about 51754.5322073343. The cubic root of 2678531604 is about 1388.7761779507.

The spelling of 2678531604 in words is "two billion, six hundred seventy-eight million, five hundred thirty-one thousand, six hundred four".