83886315641845 has 16 divisors (see below), whose sum is σ = 104881919897088. Its totient is φ = 64337288800320.

The previous prime is 83886315641809. The next prime is 83886315641927. The reversal of 83886315641845 is 54814651368838.

It is not a de Polignac number, because 83886315641845 - 2²⁷ = 83886181424117 is a prime.

It is a super-2 number, since 2×83886315641845² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2528964894 + ... + 2528998063.

It is an arithmetic number, because the mean of its divisors is an integer number (6555119993568).

Almost surely, 2^{83886315641845} is an apocalyptic number.

It is an amenable number.

83886315641845 is a deficient number, since it is larger than the sum of its proper divisors (20995604255243).

83886315641845 is a wasteful number, since it uses less digits than its factorization.

83886315641845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057963100.

The product of its digits is 530841600, while the sum is 70.

The spelling of 83886315641845 in words is "eighty-three trillion, eight hundred eighty-six billion, three hundred fifteen million, six hundred forty-one thousand, eight hundred forty-five".