47547851616 has 72 divisors (see below), whose sum is σ = 143167994424. Its totient is φ = 14916971520.

The previous prime is 47547851587. The next prime is 47547851651. The reversal of 47547851616 is 61615874574.

47547851616 is a `hidden beast` number, since 4 + 7 + 5 + 478 + 5 + 161 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×47547851616² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4850890 + ... + 4860681.

It is an arithmetic number, because the mean of its divisors is an integer number (1988444367).

Almost surely, 2^47547851616 is an apocalyptic number.

It is an amenable number.

47547851616 is an abundant number, since it is smaller than the sum of its proper divisors (95620142808).

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

47547851616 is a wasteful number, since it uses less digits than its factorization.

47547851616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9711604 (or 9711593 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 54.

The spelling of 47547851616 in words is "forty-seven billion, five hundred forty-seven million, eight hundred fifty-one thousand, six hundred sixteen".