139886679771 has 24 divisors (see below), whose sum is σ = 208599106560. Its totient is φ = 90239713200.

The previous prime is 139886679769. The next prime is 139886679781. The reversal of 139886679771 is 177976688931.

139886679771 is a `hidden beast` number, since 1 + 398 + 86 + 6 + 7 + 97 + 71 = 666.

139886679771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139886679771 - 2¹ = 139886679769 is a prime.

It is a super-2 number, since 2×139886679771² (a number of 23 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 139886679771.

It is not an unprimeable number, because it can be changed into a prime (139886679721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3279660 + ... + 3322038.

It is an arithmetic number, because the mean of its divisors is an integer number (8691629440).

Almost surely, 2^139886679771 is an apocalyptic number.

139886679771 is a deficient number, since it is larger than the sum of its proper divisors (68712426789).

139886679771 is a wasteful number, since it uses less digits than its factorization.

139886679771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54247 (or 54244 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 72.

The spelling of 139886679771 in words is "one hundred thirty-nine billion, eight hundred eighty-six million, six hundred seventy-nine thousand, seven hundred seventy-one".