2787478548 has 12 divisors (see below), whose sum is σ = 6504116640. Its totient is φ = 929159512.

The previous prime is 2787478481. The next prime is 2787478549. The reversal of 2787478548 is 8458747872.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 2787478491 and 2787478500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2787478549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116144928 + ... + 116144951.

It is an arithmetic number, because the mean of its divisors is an integer number (542009720).

Almost surely, 2^2787478548 is an apocalyptic number.

It is an amenable number.

2787478548 is an abundant number, since it is smaller than the sum of its proper divisors (3716638092).

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

2787478548 is a wasteful number, since it uses less digits than its factorization.

2787478548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232289886 (or 232289884 counting only the distinct ones).

The product of its digits is 28098560, while the sum is 60.

The square root of 2787478548 is about 52796.5770481383. The cubic root of 2787478548 is about 1407.3555969119.

The spelling of 2787478548 in words is "two billion, seven hundred eighty-seven million, four hundred seventy-eight thousand, five hundred forty-eight".