806264590658 has 6 divisors (see below), whose sum is σ = 1209398790771. Its totient is φ = 403131660402.

The previous prime is 806264590583. The next prime is 806264590771. The reversal of 806264590658 is 856095462608.

806264590658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 403132295329 + 403132295329 = 634927^2 + 634927^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=634927.

It is a super-4 number, since 4×806264590658⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 806264590597 and 806264590606.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 952391 + ... + 1587317.

Almost surely, 2^806264590658 is an apocalyptic number.

806264590658 is a deficient number, since it is larger than the sum of its proper divisors (403134200113).

806264590658 is an frugal number, since it uses more digits than its factorization.

806264590658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269856 (or 634929 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 59.

The spelling of 806264590658 in words is "eight hundred six billion, two hundred sixty-four million, five hundred ninety thousand, six hundred fifty-eight".