2171104992 has 96 divisors (see below), whose sum is σ = 7237036800. Its totient is φ = 620313984.

The previous prime is 2171104979. The next prime is 2171104993. The reversal of 2171104992 is 2994011712.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171104993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173442 + ... + 185537.

It is an arithmetic number, because the mean of its divisors is an integer number (75385800).

Almost surely, 2^2171104992 is an apocalyptic number.

It is an amenable number.

2171104992 is an abundant number, since it is smaller than the sum of its proper divisors (5065931808).

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

2171104992 is a wasteful number, since it uses less digits than its factorization.

2171104992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359005 (or 358991 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 2171104992 is about 46595.1176841523. The cubic root of 2171104992 is about 1294.8723043589.

The spelling of 2171104992 in words is "two billion, one hundred seventy-one million, one hundred four thousand, nine hundred ninety-two".