47766666772 has 24 divisors (see below), whose sum is σ = 91254401280. Its totient is φ = 21697004160.

The previous prime is 47766666763. The next prime is 47766666797. The reversal of 47766666772 is 27766666774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313893 + ... + 440524.

It is an arithmetic number, because the mean of its divisors is an integer number (3802266720).

Almost surely, 2^47766666772 is an apocalyptic number.

It is an amenable number.

47766666772 is a deficient number, since it is larger than the sum of its proper divisors (43487734508).

47766666772 is a wasteful number, since it uses less digits than its factorization.

47766666772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755871 (or 755869 counting only the distinct ones).

The product of its digits is 149361408, while the sum is 64.

The spelling of 47766666772 in words is "forty-seven billion, seven hundred sixty-six million, six hundred sixty-six thousand, seven hundred seventy-two".