2578988106 has 16 divisors (see below), whose sum is σ = 5731084800. Its totient is φ = 859662684.

The previous prime is 2578988099. The next prime is 2578988107. The reversal of 2578988106 is 6018898752.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 47759039 = 2578988106 / (2 + 5 + 7 + 8 + 9 + 8 + 8 + 1 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (2578988107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23879466 + ... + 23879573.

It is an arithmetic number, because the mean of its divisors is an integer number (358192800).

Almost surely, 2^2578988106 is an apocalyptic number.

2578988106 is an abundant number, since it is smaller than the sum of its proper divisors (3152096694).

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

2578988106 is a wasteful number, since it uses less digits than its factorization.

2578988106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47759050 (or 47759044 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 54.

The square root of 2578988106 is about 50783.7385980985. The cubic root of 2578988106 is about 1371.3546382298.

The spelling of 2578988106 in words is "two billion, five hundred seventy-eight million, nine hundred eighty-eight thousand, one hundred six".