47912745816 has 192 divisors, whose sum is σ = 149878965600. Its totient is φ = 13702680576.

The previous prime is 47912745791. The next prime is 47912745827. The reversal of 47912745816 is 61854721974.

47912745816 is a `hidden beast` number, since 47 + 9 + 12 + 7 + 4 + 581 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 917136 + ... + 967968.

Almost surely, 2^47912745816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47912745816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74939482800).

47912745816 is an abundant number, since it is smaller than the sum of its proper divisors (101966219784).

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

47912745816 is a wasteful number, since it uses less digits than its factorization.

47912745816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50930 (or 50923 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The spelling of 47912745816 in words is "forty-seven billion, nine hundred twelve million, seven hundred forty-five thousand, eight hundred sixteen".