11537143474 has 4 divisors (see below), whose sum is σ = 17305715214. Its totient is φ = 5768571736.

The previous prime is 11537143447. The next prime is 11537143487. The reversal of 11537143474 is 47434173511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11177775625 + 359367849 = 105725^2 + 18957^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2884285867 + ... + 2884285870.

Almost surely, 2^11537143474 is an apocalyptic number.

11537143474 is a deficient number, since it is larger than the sum of its proper divisors (5768571740).

11537143474 is an equidigital number, since it uses as much as digits as its factorization.

11537143474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5768571739.

The product of its digits is 141120, while the sum is 40.

The spelling of 11537143474 in words is "eleven billion, five hundred thirty-seven million, one hundred forty-three thousand, four hundred seventy-four".