86780394726 has 16 divisors (see below), whose sum is σ = 173564228928. Its totient is φ = 28926225000.

The previous prime is 86780394707. The next prime is 86780394739. The reversal of 86780394726 is 62749308768.

It is a self number, because there is not a number n which added to its sum of digits gives 86780394726.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281601 + ... + 502851.

It is an arithmetic number, because the mean of its divisors is an integer number (10847764308).

Almost surely, 2^86780394726 is an apocalyptic number.

86780394726 is an abundant number, since it is smaller than the sum of its proper divisors (86783834202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86780394726 is a wasteful number, since it uses less digits than its factorization.

86780394726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286627.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 86780394726 in words is "eighty-six billion, seven hundred eighty million, three hundred ninety-four thousand, seven hundred twenty-six".