11947923712 has 36 divisors (see below), whose sum is σ = 24886108800. Its totient is φ = 5714221568.

The previous prime is 11947923703. The next prime is 11947923733. The reversal of 11947923712 is 21732974911.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 1008712 + ... + 1020487.

It is an arithmetic number, because the mean of its divisors is an integer number (691280800).

Almost surely, 2^11947923712 is an apocalyptic number.

It is an amenable number.

11947923712 is an abundant number, since it is smaller than the sum of its proper divisors (12938185088).

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

11947923712 is an equidigital number, since it uses as much as digits as its factorization.

11947923712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2029238 (or 2029224 counting only the distinct ones).

The product of its digits is 190512, while the sum is 46.

The spelling of 11947923712 in words is "eleven billion, nine hundred forty-seven million, nine hundred twenty-three thousand, seven hundred twelve".