13777643051 has 4 divisors (see below), whose sum is σ = 13778997072. Its totient is φ = 13776289032.

The previous prime is 13777643003. The next prime is 13777643059. The reversal of 13777643051 is 15034677731.

13777643051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15034677731 = 373 ⋅40307447.

It is a cyclic number.

It is not a de Polignac number, because 13777643051 - 2⁶ = 13777642987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13777642993 and 13777643011.

It is not an unprimeable number, because it can be changed into a prime (13777643059) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 661631 + ... + 682136.

It is an arithmetic number, because the mean of its divisors is an integer number (3444749268).

Almost surely, 2^13777643051 is an apocalyptic number.

13777643051 is a deficient number, since it is larger than the sum of its proper divisors (1354021).

13777643051 is a wasteful number, since it uses less digits than its factorization.

13777643051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354020.

The product of its (nonzero) digits is 370440, while the sum is 44.

The spelling of 13777643051 in words is "thirteen billion, seven hundred seventy-seven million, six hundred forty-three thousand, fifty-one".