826853559988 has 6 divisors (see below), whose sum is σ = 1446993729986. Its totient is φ = 413426779992.

The previous prime is 826853559941. The next prime is 826853559989. The reversal of 826853559988 is 889955358628.

It can be written as a sum of positive squares in only one way, i.e., 797766939684 + 29086620304 = 893178^2 + 170548^2 .

It is a super-2 number, since 2×826853559988² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826853559989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103356694995 + ... + 103356695002.

Almost surely, 2^826853559988 is an apocalyptic number.

It is an amenable number.

826853559988 is a deficient number, since it is larger than the sum of its proper divisors (620140169998).

826853559988 is a wasteful number, since it uses less digits than its factorization.

826853559988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206713390001 (or 206713389999 counting only the distinct ones).

The product of its digits is 1492992000, while the sum is 76.

The spelling of 826853559988 in words is "eight hundred twenty-six billion, eight hundred fifty-three million, five hundred fifty-nine thousand, nine hundred eighty-eight".