11423637494 has 4 divisors (see below), whose sum is σ = 17135456244. Its totient is φ = 5711818746.

The previous prime is 11423637487. The next prime is 11423637517. The reversal of 11423637494 is 49473632411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49473632411 = 7 ⋅7067661773.

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, 2855909372 + ... + 2855909375.

It is an arithmetic number, because the mean of its divisors is an integer number (4283864061).

Almost surely, 2^11423637494 is an apocalyptic number.

11423637494 is a deficient number, since it is larger than the sum of its proper divisors (5711818750).

11423637494 is an equidigital number, since it uses as much as digits as its factorization.

11423637494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711818749.

The product of its digits is 435456, while the sum is 44.

The spelling of 11423637494 in words is "eleven billion, four hundred twenty-three million, six hundred thirty-seven thousand, four hundred ninety-four".