2678479650 has 432 divisors, whose sum is σ = 9493454880. Its totient is φ = 555206400.

The previous prime is 2678479649. The next prime is 2678479667. The reversal of 2678479650 is 569748762.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 6548646 + ... + 6549054.

It is an arithmetic number, because the mean of its divisors is an integer number (21975590).

Almost surely, 2^2678479650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2678479650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4746727440).

2678479650 is an abundant number, since it is smaller than the sum of its proper divisors (6814975230).

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

2678479650 is a wasteful number, since it uses less digits than its factorization.

2678479650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The square root of 2678479650 is about 51754.0302778441. The cubic root of 2678479650 is about 1388.7671987841.

The spelling of 2678479650 in words is "two billion, six hundred seventy-eight million, four hundred seventy-nine thousand, six hundred fifty".