802145635136 has 28 divisors (see below), whose sum is σ = 1591786296228. Its totient is φ = 401065623552.

The previous prime is 802145635127. The next prime is 802145635139. The reversal of 802145635136 is 631536541208.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 534442875136 + 267702760000 = 731056^2 + 517400^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802145635139) 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, 6487040 + ... + 6609536.

Almost surely, 2^802145635136 is an apocalyptic number.

It is an amenable number.

802145635136 is a deficient number, since it is larger than the sum of its proper divisors (789640661092).

802145635136 is a wasteful number, since it uses less digits than its factorization.

802145635136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224826 (or 224816 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 802145635136 in words is "eight hundred two billion, one hundred forty-five million, six hundred thirty-five thousand, one hundred thirty-six".