2578605982 has 8 divisors (see below), whose sum is σ = 3868229952. Its totient is φ = 1289196000.

The previous prime is 2578605973. The next prime is 2578606003. The reversal of 2578605982 is 2895068752.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 18894 + ... + 74257.

It is an arithmetic number, because the mean of its divisors is an integer number (483528744).

Almost surely, 2^2578605982 is an apocalyptic number.

2578605982 is a deficient number, since it is larger than the sum of its proper divisors (1289623970).

2578605982 is a wasteful number, since it uses less digits than its factorization.

2578605982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106994.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The square root of 2578605982 is about 50779.9761914084. The cubic root of 2578605982 is about 1371.2869045061.

The spelling of 2578605982 in words is "two billion, five hundred seventy-eight million, six hundred five thousand, nine hundred eighty-two".