26673749041 has 3 divisors (see below), whose sum is σ = 26673912363. Its totient is φ = 26673585720.

The previous prime is 26673748993. The next prime is 26673749059. The reversal of 26673749041 is 14094737662.

The square root of 26673749041 is 163321.

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.

It can be written as a sum of positive squares in only one way, i.e., 4425043441 + 22248705600 = 66521^2 + 149160^2 .

It is not a de Polignac number, because 26673749041 - 2²⁹ = 26136878129 is a prime.

It is a super-2 number, since 2×26673749041² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26673741041) 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, 81661 + ... + 244981.

It is an arithmetic number, because the mean of its divisors is an integer number (8891304121).

Almost surely, 2^26673749041 is an apocalyptic number.

26673749041 is the 163321-st square number.

26673749041 is the 81661-st centered octagonal number.

It is an amenable number.

26673749041 is a deficient number, since it is larger than the sum of its proper divisors (163322).

26673749041 is an frugal number, since it uses more digits than its factorization.

26673749041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326642 (or 163321 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 49.

Multiplying 26673749041 by its sum of digits (49), we get a square (1307013703009 = 1143247²).

The spelling of 26673749041 in words is "twenty-six billion, six hundred seventy-three million, seven hundred forty-nine thousand, forty-one".