11947901484 has 12 divisors (see below), whose sum is σ = 27878436824. Its totient is φ = 3982633824.

The previous prime is 11947901437. The next prime is 11947901501. The reversal of 11947901484 is 48410974911.

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, 497829217 + ... + 497829240.

Almost surely, 2^11947901484 is an apocalyptic number.

It is an amenable number.

11947901484 is an abundant number, since it is smaller than the sum of its proper divisors (15930535340).

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

11947901484 is a wasteful number, since it uses less digits than its factorization.

11947901484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995658464 (or 995658462 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 11947901484 in words is "eleven billion, nine hundred forty-seven million, nine hundred one thousand, four hundred eighty-four".