2578985799 has 32 divisors (see below), whose sum is σ = 3944364480. Its totient is φ = 1493646336.

The previous prime is 2578985771. The next prime is 2578985807. The reversal of 2578985799 is 9975898752.

2578985799 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2578985799 - 2⁸ = 2578985543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578985719) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 100539 + ... + 123555.

It is an arithmetic number, because the mean of its divisors is an integer number (123261390).

Almost surely, 2^2578985799 is an apocalyptic number.

2578985799 is a deficient number, since it is larger than the sum of its proper divisors (1365378681).

2578985799 is a wasteful number, since it uses less digits than its factorization.

2578985799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23076 (or 23050 counting only the distinct ones).

The product of its digits is 114307200, while the sum is 69.

The square root of 2578985799 is about 50783.7158841296. The cubic root of 2578985799 is about 1371.3542293205.

The spelling of 2578985799 in words is "two billion, five hundred seventy-eight million, nine hundred eighty-five thousand, seven hundred ninety-nine".