11618367478 has 4 divisors (see below), whose sum is σ = 17427551220. Its totient is φ = 5809183738.

The previous prime is 11618367461. The next prime is 11618367479. The reversal of 11618367478 is 87476381611.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11618367479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2904591868 + ... + 2904591871.

It is an arithmetic number, because the mean of its divisors is an integer number (4356887805).

Almost surely, 2^11618367478 is an apocalyptic number.

11618367478 is a deficient number, since it is larger than the sum of its proper divisors (5809183742).

11618367478 is an equidigital number, since it uses as much as digits as its factorization.

11618367478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5809183741.

The product of its digits is 1354752, while the sum is 52.

The spelling of 11618367478 in words is "eleven billion, six hundred eighteen million, three hundred sixty-seven thousand, four hundred seventy-eight".