4273210163745 has 48 divisors (see below), whose sum is σ = 7413550362192. Its totient is φ = 2276999424000.

The previous prime is 4273210163737. The next prime is 4273210163861. The reversal of 4273210163745 is 5473610123724.

It is a happy number.

4273210163745 is a `hidden beast` number, since 4 + 2 + 7 + 3 + 2 + 1 + 0 + 1 + 637 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 819678540321 + 3453531623424 = 905361^2 + 1858368^2 .

It is not a de Polignac number, because 4273210163745 - 2³ = 4273210163737 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 4273210163745.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269136747 + ... + 269152623.

It is an arithmetic number, because the mean of its divisors is an integer number (154448965879).

Almost surely, 2^{4273210163745} is an apocalyptic number.

4273210163745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4273210163745 is a deficient number, since it is larger than the sum of its proper divisors (3140340198447).

4273210163745 is a wasteful number, since it uses less digits than its factorization.

4273210163745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20882 (or 20879 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 4273210163745 in words is "four trillion, two hundred seventy-three billion, two hundred ten million, one hundred sixty-three thousand, seven hundred forty-five".