802489688906 has 24 divisors (see below), whose sum is σ = 1281953955564. Its totient is φ = 375458827520.

The previous prime is 802489688893. The next prime is 802489688933. The reversal of 802489688906 is 609886984208.

802489688906 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 6 ways, for example, as 777851677681 + 24638011225 = 881959^2 + 156965^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 623276 + ... + 1411896.

Almost surely, 2^802489688906 is an apocalyptic number.

802489688906 is a deficient number, since it is larger than the sum of its proper divisors (479464266658).

802489688906 is a wasteful number, since it uses less digits than its factorization.

802489688906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788986 (or 788813 counting only the distinct ones).

The product of its (nonzero) digits is 95551488, while the sum is 68.

The spelling of 802489688906 in words is "eight hundred two billion, four hundred eighty-nine million, six hundred eighty-eight thousand, nine hundred six".