8212570823157 has 16 divisors (see below), whose sum is σ = 11444825332608. Its totient is φ = 5228458424640.

The previous prime is 8212570823147. The next prime is 8212570823161. The reversal of 8212570823157 is 7513280752128.

It is not a de Polignac number, because 8212570823157 - 2⁷ = 8212570823029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8212570823147) 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, 97039894 + ... + 97124487.

It is an arithmetic number, because the mean of its divisors is an integer number (715301583288).

Almost surely, 2^{8212570823157} is an apocalyptic number.

It is an amenable number.

8212570823157 is a deficient number, since it is larger than the sum of its proper divisors (3232254509451).

8212570823157 is a wasteful number, since it uses less digits than its factorization.

8212570823157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194165020.

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 8212570823157 in words is "eight trillion, two hundred twelve billion, five hundred seventy million, eight hundred twenty-three thousand, one hundred fifty-seven".