4263661340172 has 72 divisors (see below), whose sum is σ = 11607180756080. Its totient is φ = 1311833957760.

The previous prime is 4263661340143. The next prime is 4263661340173. The reversal of 4263661340172 is 2710431663624.

4263661340172 is a `hidden beast` number, since 4 + 2 + 636 + 6 + 1 + 3 + 4 + 0 + 1 + 7 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (4263661340173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10270779 + ... + 10677837.

Almost surely, 2^{4263661340172} is an apocalyptic number.

It is an amenable number.

4263661340172 is an abundant number, since it is smaller than the sum of its proper divisors (7343519415908).

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

4263661340172 is a wasteful number, since it uses less digits than its factorization.

4263661340172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429463 (or 429458 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 4263661340172 in words is "four trillion, two hundred sixty-three billion, six hundred sixty-one million, three hundred forty thousand, one hundred seventy-two".