2013678399 has 4 divisors (see below), whose sum is σ = 2684904536. Its totient is φ = 1342452264.

The previous prime is 2013678397. The next prime is 2013678409. The reversal of 2013678399 is 9938763102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2013678399 - 2¹ = 2013678397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013678397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335613064 + ... + 335613069.

It is an arithmetic number, because the mean of its divisors is an integer number (671226134).

Almost surely, 2^2013678399 is an apocalyptic number.

2013678399 is a deficient number, since it is larger than the sum of its proper divisors (671226137).

2013678399 is an equidigital number, since it uses as much as digits as its factorization.

2013678399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671226136.

The product of its (nonzero) digits is 489888, while the sum is 48.

The square root of 2013678399 is about 44874.0281120383. The cubic root of 2013678399 is about 1262.7868104258.

The spelling of 2013678399 in words is "two billion, thirteen million, six hundred seventy-eight thousand, three hundred ninety-nine".