11967875461858 has 4 divisors (see below), whose sum is σ = 17951813192790. Its totient is φ = 5983937730928.

The previous prime is 11967875461813. The next prime is 11967875461873. The reversal of 11967875461858 is 85816457876911.

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., 11955156810129 + 12718651729 = 3457623^2 + 112777^2 .

It is a Smith number, since the sum of its digits (76) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2991968865463 + ... + 2991968865466.

Almost surely, 2^{11967875461858} is an apocalyptic number.

11967875461858 is a deficient number, since it is larger than the sum of its proper divisors (5983937730932).

11967875461858 is an equidigital number, since it uses as much as digits as its factorization.

11967875461858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983937730931.

The product of its digits is 812851200, while the sum is 76.

The spelling of 11967875461858 in words is "eleven trillion, nine hundred sixty-seven billion, eight hundred seventy-five million, four hundred sixty-one thousand, eight hundred fifty-eight".