86933991078 has 24 divisors (see below), whose sum is σ = 205480343016. Its totient is φ = 26343633600.

The previous prime is 86933991037. The next prime is 86933991101. The reversal of 86933991078 is 87019933968.

86933991078 is a `hidden beast` number, since 86 + 93 + 399 + 10 + 78 = 666.

It is a congruent number.

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, 219530083 + ... + 219530478.

It is an arithmetic number, because the mean of its divisors is an integer number (8561680959).

Almost surely, 2^86933991078 is an apocalyptic number.

86933991078 is an abundant number, since it is smaller than the sum of its proper divisors (118546351938).

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

86933991078 is a wasteful number, since it uses less digits than its factorization.

86933991078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439060580 (or 439060577 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 63.

The spelling of 86933991078 in words is "eighty-six billion, nine hundred thirty-three million, nine hundred ninety-one thousand, seventy-eight".