870641434138202 has 4 divisors (see below), whose sum is σ = 1305962151207306. Its totient is φ = 435320717069100.

The previous prime is 870641434138183. The next prime is 870641434138297. The reversal of 870641434138202 is 202831434146078.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 774851191150201 + 95790242988001 = 27836149^2 + 9787249^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217660358534549 + ... + 217660358534552.

Almost surely, 2^{870641434138202} is an apocalyptic number.

870641434138202 is a deficient number, since it is larger than the sum of its proper divisors (435320717069104).

870641434138202 is a wasteful number, since it uses less digits than its factorization.

870641434138202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435320717069103.

The product of its (nonzero) digits is 6193152, while the sum is 53.

The spelling of 870641434138202 in words is "eight hundred seventy trillion, six hundred forty-one billion, four hundred thirty-four million, one hundred thirty-eight thousand, two hundred two".