82570971994 has 8 divisors (see below), whose sum is σ = 141550237728. Its totient is φ = 35387559420.

The previous prime is 82570971929. The next prime is 82570971997. The reversal of 82570971994 is 49917907528.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (82570971997) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2948963272 + ... + 2948963299.

It is an arithmetic number, because the mean of its divisors is an integer number (17693779716).

Almost surely, 2^82570971994 is an apocalyptic number.

82570971994 is a deficient number, since it is larger than the sum of its proper divisors (58979265734).

82570971994 is a wasteful number, since it uses less digits than its factorization.

82570971994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897926580.

The product of its (nonzero) digits is 11430720, while the sum is 61.

The spelling of 82570971994 in words is "eighty-two billion, five hundred seventy million, nine hundred seventy-one thousand, nine hundred ninety-four".