2175677980 has 48 divisors (see below), whose sum is σ = 5280327360. Its totient is φ = 737561088.

The previous prime is 2175677953. The next prime is 2175677983. The reversal of 2175677980 is 897765712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175677983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74847 + ... + 99766.

It is an arithmetic number, because the mean of its divisors is an integer number (110006820).

Almost surely, 2^2175677980 is an apocalyptic number.

2175677980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2175677980 is an abundant number, since it is smaller than the sum of its proper divisors (3104649380).

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

2175677980 is a wasteful number, since it uses less digits than its factorization.

2175677980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174718 (or 174716 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 52.

The square root of 2175677980 is about 46644.1634076548. The cubic root of 2175677980 is about 1295.7807945761.

The spelling of 2175677980 in words is "two billion, one hundred seventy-five million, six hundred seventy-seven thousand, nine hundred eighty".