11581074958 has 4 divisors (see below), whose sum is σ = 17371612440. Its totient is φ = 5790537478.

The previous prime is 11581074949. The next prime is 11581074971. The reversal of 11581074958 is 85947018511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85947018511 = 30977 ⋅2774543.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2895268738 + ... + 2895268741.

It is an arithmetic number, because the mean of its divisors is an integer number (4342903110).

Almost surely, 2^11581074958 is an apocalyptic number.

11581074958 is a deficient number, since it is larger than the sum of its proper divisors (5790537482).

11581074958 is an equidigital number, since it uses as much as digits as its factorization.

11581074958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5790537481.

The product of its (nonzero) digits is 403200, while the sum is 49.

The spelling of 11581074958 in words is "eleven billion, five hundred eighty-one million, seventy-four thousand, nine hundred fifty-eight".