11485617172 has 6 divisors (see below), whose sum is σ = 20099830058. Its totient is φ = 5742808584.

The previous prime is 11485617137. The next prime is 11485617179. The reversal of 11485617172 is 27171658411.

It can be written as a sum of positive squares in only one way, i.e., 8844273936 + 2641343236 = 94044^2 + 51394^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11485617179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435702143 + ... + 1435702150.

Almost surely, 2^11485617172 is an apocalyptic number.

It is an amenable number.

11485617172 is a deficient number, since it is larger than the sum of its proper divisors (8614212886).

11485617172 is a wasteful number, since it uses less digits than its factorization.

11485617172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2871404297 (or 2871404295 counting only the distinct ones).

The product of its digits is 94080, while the sum is 43.

The spelling of 11485617172 in words is "eleven billion, four hundred eighty-five million, six hundred seventeen thousand, one hundred seventy-two".