2978539556 has 12 divisors (see below), whose sum is σ = 5212865280. Its totient is φ = 1489149480.

The previous prime is 2978539547. The next prime is 2978539573. The reversal of 2978539556 is 6559358792.

It is a junction number, because it is equal to n+sod(n) for n = 2978539495 and 2978539504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48365 + ... + 91083.

It is an arithmetic number, because the mean of its divisors is an integer number (434405440).

Almost surely, 2^2978539556 is an apocalyptic number.

It is an amenable number.

2978539556 is a deficient number, since it is larger than the sum of its proper divisors (2234325724).

2978539556 is a wasteful number, since it uses less digits than its factorization.

2978539556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60154 (or 60152 counting only the distinct ones).

The product of its digits is 20412000, while the sum is 59.

The square root of 2978539556 is about 54575.9979844620. The cubic root of 2978539556 is about 1438.8023020774.

The spelling of 2978539556 in words is "two billion, nine hundred seventy-eight million, five hundred thirty-nine thousand, five hundred fifty-six".