86433807990 has 32 divisors (see below), whose sum is σ = 207511599456. Its totient is φ = 23041186560.

The previous prime is 86433807989. The next prime is 86433808001. The reversal of 86433807990 is 9970833468.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 86433807990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 399241 + ... + 576420.

It is an arithmetic number, because the mean of its divisors is an integer number (6484737483).

Almost surely, 2^86433807990 is an apocalyptic number.

86433807990 is an abundant number, since it is smaller than the sum of its proper divisors (121077791466).

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

86433807990 is a wasteful number, since it uses less digits than its factorization.

86433807990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978624.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The spelling of 86433807990 in words is "eighty-six billion, four hundred thirty-three million, eight hundred seven thousand, nine hundred ninety".