11847397453728 has 24 divisors (see below), whose sum is σ = 31099418316288. Its totient is φ = 3949132484544.

The previous prime is 11847397453721. The next prime is 11847397453751. The reversal of 11847397453728 is 82735479374811.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (11847397453721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61705194976 + ... + 61705195167.

It is an arithmetic number, because the mean of its divisors is an integer number (1295809096512).

Almost surely, 2^{11847397453728} is an apocalyptic number.

It is an amenable number.

11847397453728 is an abundant number, since it is smaller than the sum of its proper divisors (19252020862560).

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

11847397453728 is a wasteful number, since it uses less digits than its factorization.

11847397453728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123410390156 (or 123410390148 counting only the distinct ones).

The product of its digits is 284497920, while the sum is 69.

The spelling of 11847397453728 in words is "eleven trillion, eight hundred forty-seven billion, three hundred ninety-seven million, four hundred fifty-three thousand, seven hundred twenty-eight".