47438071848 has 80 divisors (see below), whose sum is σ = 133000296000. Its totient is φ = 15797247264.

The previous prime is 47438071777. The next prime is 47438071861. The reversal of 47438071848 is 84817083474.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 47438071794 and 47438071803.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 638043 + ... + 708501.

It is an arithmetic number, because the mean of its divisors is an integer number (1662503700).

Almost surely, 2^47438071848 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 47438071848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66500148000).

47438071848 is an abundant number, since it is smaller than the sum of its proper divisors (85562224152).

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

47438071848 is a wasteful number, since it uses less digits than its factorization.

47438071848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71516 (or 71503 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 54.

The spelling of 47438071848 in words is "forty-seven billion, four hundred thirty-eight million, seventy-one thousand, eight hundred forty-eight".