11948175681 has 16 divisors (see below), whose sum is σ = 17480062656. Its totient is φ = 7213991616.

The previous prime is 11948175643. The next prime is 11948175683. The reversal of 11948175681 is 18657184911.

It is not a de Polignac number, because 11948175681 - 2¹⁰ = 11948174657 is a prime.

It is a super-2 number, since 2×11948175681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11948175683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2888155 + ... + 2892288.

It is an arithmetic number, because the mean of its divisors is an integer number (1092503916).

Almost surely, 2^11948175681 is an apocalyptic number.

It is an amenable number.

11948175681 is a deficient number, since it is larger than the sum of its proper divisors (5531886975).

11948175681 is a wasteful number, since it uses less digits than its factorization.

11948175681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780512.

The product of its digits is 483840, while the sum is 51.

The spelling of 11948175681 in words is "eleven billion, nine hundred forty-eight million, one hundred seventy-five thousand, six hundred eighty-one".