2173136280 has 96 divisors (see below), whose sum is σ = 7583822640. Its totient is φ = 496715520.

The previous prime is 2173136269. The next prime is 2173136291. The reversal of 2173136280 is 826313712.

It is an interprime number because it is at equal distance from previous prime (2173136269) and next prime (2173136291).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178911 + ... + 190670.

Almost surely, 2^2173136280 is an apocalyptic number.

2173136280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2173136280 is an abundant number, since it is smaller than the sum of its proper divisors (5410686360).

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

2173136280 is a wasteful number, since it uses less digits than its factorization.

2173136280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369609 (or 369598 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 2173136280 is about 46616.9098074937. The cubic root of 2173136280 is about 1295.2760064244.

Adding to 2173136280 its reverse (826313712), we get a palindrome (2999449992).

The spelling of 2173136280 in words is "two billion, one hundred seventy-three million, one hundred thirty-six thousand, two hundred eighty".