4272657861 has 4 divisors (see below), whose sum is σ = 5696877152. Its totient is φ = 2848438572.

The previous prime is 4272657839. The next prime is 4272657877. The reversal of 4272657861 is 1687562724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4272657861 - 2¹⁰ = 4272656837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4272657861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4272652861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712109641 + ... + 712109646.

It is an arithmetic number, because the mean of its divisors is an integer number (1424219288).

Almost surely, 2^4272657861 is an apocalyptic number.

It is an amenable number.

4272657861 is a deficient number, since it is larger than the sum of its proper divisors (1424219291).

4272657861 is a wasteful number, since it uses less digits than its factorization.

4272657861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424219290.

The product of its digits is 1128960, while the sum is 48.

The square root of 4272657861 is about 65365.5709146642. The cubic root of 4272657861 is about 1622.6793365571.

The spelling of 4272657861 in words is "four billion, two hundred seventy-two million, six hundred fifty-seven thousand, eight hundred sixty-one".