47857623812 has 6 divisors (see below), whose sum is σ = 83750841678. Its totient is φ = 23928811904.

The previous prime is 47857623809. The next prime is 47857623817. The reversal of 47857623812 is 21832675874.

It can be written as a sum of positive squares in only one way, i.e., 27048407296 + 20809216516 = 164464^2 + 144254^2 .

It is a super-2 number, since 2×47857623812² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47857623817) by changing a digit.

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 as a sum of consecutive naturals, namely, 5982202973 + ... + 5982202980.

It is an arithmetic number, because the mean of its divisors is an integer number (13958473613).

Almost surely, 2^47857623812 is an apocalyptic number.

It is an amenable number.

47857623812 is a deficient number, since it is larger than the sum of its proper divisors (35893217866).

47857623812 is a wasteful number, since it uses less digits than its factorization.

47857623812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11964405957 (or 11964405955 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The spelling of 47857623812 in words is "forty-seven billion, eight hundred fifty-seven million, six hundred twenty-three thousand, eight hundred twelve".