2172346512 has 40 divisors (see below), whose sum is σ = 6413595456. Its totient is φ = 620670336.

The previous prime is 2172346511. The next prime is 2172346531. The reversal of 2172346512 is 2156432712.

It is a super-2 number, since 2×2172346512² = 9438178736397132288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2172346511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3232323 + ... + 3232994.

Almost surely, 2^2172346512 is an apocalyptic number.

It is an amenable number.

2172346512 is an abundant number, since it is smaller than the sum of its proper divisors (4241248944).

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

2172346512 is a wasteful number, since it uses less digits than its factorization.

2172346512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6465335 (or 6465329 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 2172346512 is about 46608.4382059730. The cubic root of 2172346512 is about 1295.1190763231.

The spelling of 2172346512 in words is "two billion, one hundred seventy-two million, three hundred forty-six thousand, five hundred twelve".