139024867818 has 16 divisors (see below), whose sum is σ = 278132504256. Its totient is φ = 46327827840.

The previous prime is 139024867771. The next prime is 139024867829. The reversal of 139024867818 is 818768420931.

It is a super-2 number, since 2×139024867818² (a number of 23 digits) contains 22 as substring.

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, 3426846 + ... + 3467177.

It is an arithmetic number, because the mean of its divisors is an integer number (17383281516).

Almost surely, 2^139024867818 is an apocalyptic number.

139024867818 is an abundant number, since it is smaller than the sum of its proper divisors (139107636438).

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

139024867818 is a wasteful number, since it uses less digits than its factorization.

139024867818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6897389.

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 139024867818 in words is "one hundred thirty-nine billion, twenty-four million, eight hundred sixty-seven thousand, eight hundred eighteen".