4172255648 has 48 divisors (see below), whose sum is σ = 8985561984. Its totient is φ = 1891253760.

The previous prime is 4172255627. The next prime is 4172255663. The reversal of 4172255648 is 8465522714.

4172255648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 64593²-1.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 4172255599 and 4172255608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113036 + ... + 145332.

It is an arithmetic number, because the mean of its divisors is an integer number (187199208).

Almost surely, 2^4172255648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4172255648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4492780992).

4172255648 is an abundant number, since it is smaller than the sum of its proper divisors (4813306336).

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

4172255648 is a wasteful number, since it uses less digits than its factorization.

4172255648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32685 (or 32677 counting only the distinct ones).

The product of its digits is 537600, while the sum is 44.

The square root of 4172255648 is about 64592.9999922592. Note that the first 5 decimals coincide. The cubic root of 4172255648 is about 1609.8681331757.

The spelling of 4172255648 in words is "four billion, one hundred seventy-two million, two hundred fifty-five thousand, six hundred forty-eight".