83995975906672 has 60 divisors (see below), whose sum is σ = 180394848138096. Its totient is φ = 37808930283520.

The previous prime is 83995975906651. The next prime is 83995975906763. The reversal of 83995975906672 is 27660957959938.

It is a super-2 number, since 2×83995975906672² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83995975906672.

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 11 ways as a sum of consecutive naturals, for example, 394789729 + ... + 395002432.

Almost surely, 2^{83995975906672} is an apocalyptic number.

It is an amenable number.

83995975906672 is an abundant number, since it is smaller than the sum of its proper divisors (96398872231424).

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

83995975906672 is a wasteful number, since it uses less digits than its factorization.

83995975906672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789792226 (or 789792203 counting only the distinct ones).

The product of its (nonzero) digits is 13888324800, while the sum is 85.

The spelling of 83995975906672 in words is "eighty-three trillion, nine hundred ninety-five billion, nine hundred seventy-five million, nine hundred six thousand, six hundred seventy-two".