11847097644 has 12 divisors (see below), whose sum is σ = 27643227864. Its totient is φ = 3949032544.

The previous prime is 11847097631. The next prime is 11847097663. The reversal of 11847097644 is 44679074811.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 493629057 + ... + 493629080.

It is an arithmetic number, because the mean of its divisors is an integer number (2303602322).

Almost surely, 2^11847097644 is an apocalyptic number.

It is an amenable number.

11847097644 is an abundant number, since it is smaller than the sum of its proper divisors (15796130220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11847097644 is a wasteful number, since it uses less digits than its factorization.

11847097644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987258144 (or 987258142 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 11847097644 in words is "eleven billion, eight hundred forty-seven million, ninety-seven thousand, six hundred forty-four".