8215973502994 has 32 divisors (see below), whose sum is σ = 12666838060800. Its totient is φ = 3994379122560.

The previous prime is 8215973502991. The next prime is 8215973503021. The reversal of 8215973502994 is 4992053795128.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8215973502991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48637872 + ... + 48806500.

It is an arithmetic number, because the mean of its divisors is an integer number (395838689400).

Almost surely, 2^{8215973502994} is an apocalyptic number.

8215973502994 is a deficient number, since it is larger than the sum of its proper divisors (4450864557806).

8215973502994 is a wasteful number, since it uses less digits than its factorization.

8215973502994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170658.

The product of its (nonzero) digits is 48988800, while the sum is 64.

The spelling of 8215973502994 in words is "eight trillion, two hundred fifteen billion, nine hundred seventy-three million, five hundred two thousand, nine hundred ninety-four".