870641434008028 has 12 divisors (see below), whose sum is σ = 1552370104033560. Its totient is φ = 427107118569872.

The previous prime is 870641434008023. The next prime is 870641434008029. The reversal of 870641434008028 is 820800434146078.

It is a super-2 number, since 2×870641434008028² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 870641434008028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870641434008023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2053399608298 + ... + 2053399608721.

It is an arithmetic number, because the mean of its divisors is an integer number (129364175336130).

Almost surely, 2^{870641434008028} is an apocalyptic number.

It is an amenable number.

870641434008028 is a deficient number, since it is larger than the sum of its proper divisors (681728670025532).

870641434008028 is a wasteful number, since it uses less digits than its factorization.

870641434008028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106799217076 (or 4106799217074 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 55.

The spelling of 870641434008028 in words is "eight hundred seventy trillion, six hundred forty-one billion, four hundred thirty-four million, eight thousand, twenty-eight".