11872871426722 has 4 divisors (see below), whose sum is σ = 17809307140086. Its totient is φ = 5936435713360.

The previous prime is 11872871426719. The next prime is 11872871426753. The reversal of 11872871426722 is 22762417827811.

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., 9254135127721 + 2618736299001 = 3042061^2 + 1618251^2 .

It is a Smith number, since the sum of its digits (58) 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, 2968217856679 + ... + 2968217856682.

Almost surely, 2^{11872871426722} is an apocalyptic number.

11872871426722 is a deficient number, since it is larger than the sum of its proper divisors (5936435713364).

11872871426722 is an equidigital number, since it uses as much as digits as its factorization.

11872871426722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5936435713363.

The product of its digits is 8429568, while the sum is 58.

The spelling of 11872871426722 in words is "eleven trillion, eight hundred seventy-two billion, eight hundred seventy-one million, four hundred twenty-six thousand, seven hundred twenty-two".