11426581492 has 12 divisors (see below), whose sum is σ = 20112105636. Its totient is φ = 5680265600.

The previous prime is 11426581487. The next prime is 11426581511. The reversal of 11426581492 is 29418562411.

It can be written as a sum of positive squares in 2 ways, for example, as 9415597156 + 2010984336 = 97034^2 + 44844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8255509 + ... + 8256892.

It is an arithmetic number, because the mean of its divisors is an integer number (1676008803).

Almost surely, 2^11426581492 is an apocalyptic number.

It is an amenable number.

11426581492 is a deficient number, since it is larger than the sum of its proper divisors (8685524144).

11426581492 is a wasteful number, since it uses less digits than its factorization.

11426581492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16512578 (or 16512576 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The spelling of 11426581492 in words is "eleven billion, four hundred twenty-six million, five hundred eighty-one thousand, four hundred ninety-two".