13877719858 has 4 divisors (see below), whose sum is σ = 20816579790. Its totient is φ = 6938859928.

The previous prime is 13877719847. The next prime is 13877719951. The reversal of 13877719858 is 85891777831.

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

It can be written as a sum of positive squares in only one way, i.e., 13865769009 + 11950849 = 117753^2 + 3457^2 .

It is a super-2 number, since 2×13877719858² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13877719858.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3469429963 + ... + 3469429966.

Almost surely, 2^13877719858 is an apocalyptic number.

13877719858 is a deficient number, since it is larger than the sum of its proper divisors (6938859932).

13877719858 is an equidigital number, since it uses as much as digits as its factorization.

13877719858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6938859931.

The product of its digits is 23708160, while the sum is 64.

The spelling of 13877719858 in words is "thirteen billion, eight hundred seventy-seven million, seven hundred nineteen thousand, eight hundred fifty-eight".