4243897455 has 16 divisors (see below), whose sum is σ = 7760269824. Its totient is φ = 1940067360.

The previous prime is 4243897433. The next prime is 4243897457. The reversal of 4243897455 is 5547983424.

It is not a de Polignac number, because 4243897455 - 2¹¹ = 4243895407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4243897398 and 4243897407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243897457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20208931 + ... + 20209140.

It is an arithmetic number, because the mean of its divisors is an integer number (485016864).

Almost surely, 2^4243897455 is an apocalyptic number.

4243897455 is a deficient number, since it is larger than the sum of its proper divisors (3516372369).

4243897455 is a wasteful number, since it uses less digits than its factorization.

4243897455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40418086.

The product of its digits is 4838400, while the sum is 51.

The square root of 4243897455 is about 65145.2028548534. The cubic root of 4243897455 is about 1619.0302399787.

The spelling of 4243897455 in words is "four billion, two hundred forty-three million, eight hundred ninety-seven thousand, four hundred fifty-five".