6423145172 has 6 divisors (see below), whose sum is σ = 11240504058. Its totient is φ = 3211572584.

The previous prime is 6423145109. The next prime is 6423145177. The reversal of 6423145172 is 2715413246.

It can be written as a sum of positive squares in only one way, i.e., 3701018896 + 2722126276 = 60836^2 + 52174^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6423145177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802893143 + ... + 802893150.

It is an arithmetic number, because the mean of its divisors is an integer number (1873417343).

Almost surely, 2^6423145172 is an apocalyptic number.

It is an amenable number.

6423145172 is a deficient number, since it is larger than the sum of its proper divisors (4817358886).

6423145172 is a wasteful number, since it uses less digits than its factorization.

6423145172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605786297 (or 1605786295 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 6423145172 is about 80144.5267750705. The cubic root of 6423145172 is about 1858.8709735817.

The spelling of 6423145172 in words is "six billion, four hundred twenty-three million, one hundred forty-five thousand, one hundred seventy-two".