82140473738 has 16 divisors (see below), whose sum is σ = 125975170944. Its totient is φ = 40150735680.

The previous prime is 82140473699. The next prime is 82140473747. The reversal of 82140473738 is 83737404128.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a junction number, because it is equal to n+sod(n) for n = 82140473692 and 82140473701.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413120 + ... + 578747.

It is an arithmetic number, because the mean of its divisors is an integer number (7873448184).

Almost surely, 2^82140473738 is an apocalyptic number.

82140473738 is a deficient number, since it is larger than the sum of its proper divisors (43834697206).

82140473738 is a wasteful number, since it uses less digits than its factorization.

82140473738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992797.

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 82140473738 in words is "eighty-two billion, one hundred forty million, four hundred seventy-three thousand, seven hundred thirty-eight".