11741672881 has 3 divisors (see below), whose sum is σ = 11741781241. Its totient is φ = 11741564522.

The previous prime is 11741672879. The next prime is 11741672893. The reversal of 11741672881 is 18827614711.

The square root of 11741672881 is 108359.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18827614711 = 69539 ⋅270749.

It is not a de Polignac number, because 11741672881 - 2¹ = 11741672879 is a prime.

It is a super-2 number, since 2×11741672881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11741672381) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 54180 + ... + 162538.

Almost surely, 2^11741672881 is an apocalyptic number.

11741672881 is the 108359-th square number.

11741672881 is the 54180-th centered octagonal number.

It is an amenable number.

11741672881 is a deficient number, since it is larger than the sum of its proper divisors (108360).

11741672881 is an frugal number, since it uses more digits than its factorization.

11741672881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216718 (or 108359 counting only the distinct ones).

The product of its digits is 150528, while the sum is 46.

The spelling of 11741672881 in words is "eleven billion, seven hundred forty-one million, six hundred seventy-two thousand, eight hundred eighty-one".