86820445035642 has 16 divisors (see below), whose sum is σ = 175591911309120. Its totient is φ = 28614978138912.

The previous prime is 86820445035637. The next prime is 86820445035743. The reversal of 86820445035642 is 24653054402868.

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, 81292550998 + ... + 81292552065.

It is an arithmetic number, because the mean of its divisors is an integer number (10974494456820).

Almost surely, 2^{86820445035642} is an apocalyptic number.

86820445035642 is an abundant number, since it is smaller than the sum of its proper divisors (88771466273478).

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

86820445035642 is a wasteful number, since it uses less digits than its factorization.

86820445035642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162585103157.

The product of its (nonzero) digits is 44236800, while the sum is 57.

The spelling of 86820445035642 in words is "eighty-six trillion, eight hundred twenty billion, four hundred forty-five million, thirty-five thousand, six hundred forty-two".