84400880404 has 6 divisors (see below), whose sum is σ = 147701540714. Its totient is φ = 42200440200.

The previous prime is 84400880383. The next prime is 84400880413. The reversal of 84400880404 is 40408800448.

It can be written as a sum of positive squares in only one way, i.e., 45296608900 + 39104271504 = 212830^2 + 197748^2 .

It is a super-2 number, since 2×84400880404² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550110047 + ... + 10550110054.

Almost surely, 2^84400880404 is an apocalyptic number.

It is an amenable number.

84400880404 is a deficient number, since it is larger than the sum of its proper divisors (63300660310).

84400880404 is a wasteful number, since it uses less digits than its factorization.

84400880404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21100220105 (or 21100220103 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 84400880404 in words is "eighty-four billion, four hundred million, eight hundred eighty thousand, four hundred four".