13892757978 has 16 divisors (see below), whose sum is σ = 30311472096. Its totient is φ = 4209926640.

The previous prime is 13892757941. The next prime is 13892758007. The reversal of 13892757978 is 87975729831.

13892757978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 210496333 = 13892757978 / (1 + 3 + 8 + 9 + 2 + 7 + 5 + 7 + 9 + 7 + 8).

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 105248101 + ... + 105248232.

It is an arithmetic number, because the mean of its divisors is an integer number (1894467006).

Almost surely, 2^13892757978 is an apocalyptic number.

13892757978 is an abundant number, since it is smaller than the sum of its proper divisors (16418714118).

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

13892757978 is a wasteful number, since it uses less digits than its factorization.

13892757978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210496349.

The product of its digits is 53343360, while the sum is 66.

The spelling of 13892757978 in words is "thirteen billion, eight hundred ninety-two million, seven hundred fifty-seven thousand, nine hundred seventy-eight".