83819155645 has 48 divisors (see below), whose sum is σ = 109670152320. Its totient is φ = 61337789568.

The previous prime is 83819155631. The next prime is 83819155669. The reversal of 83819155645 is 54655191838.

It is not a de Polignac number, because 83819155645 - 2¹³ = 83819147453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14808826 + ... + 14814484.

It is an arithmetic number, because the mean of its divisors is an integer number (2284794840).

Almost surely, 2^83819155645 is an apocalyptic number.

It is an amenable number.

83819155645 is a deficient number, since it is larger than the sum of its proper divisors (25850996675).

83819155645 is a wasteful number, since it uses less digits than its factorization.

83819155645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842 (or 5783 counting only the distinct ones).

The product of its digits is 5184000, while the sum is 55.

The spelling of 83819155645 in words is "eighty-three billion, eight hundred nineteen million, one hundred fifty-five thousand, six hundred forty-five".