4156557479 has 8 divisors (see below), whose sum is σ = 4173673392. Its totient is φ = 4139462080.

The previous prime is 4156557437. The next prime is 4156557497. The reversal of 4156557479 is 9747556514.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4156557479 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 4156557479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4156557179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500132 + ... + 508374.

It is an arithmetic number, because the mean of its divisors is an integer number (521709174).

Almost surely, 2^4156557479 is an apocalyptic number.

4156557479 is a deficient number, since it is larger than the sum of its proper divisors (17115913).

4156557479 is a wasteful number, since it uses less digits than its factorization.

4156557479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10257.

The product of its digits is 5292000, while the sum is 53.

The square root of 4156557479 is about 64471.3694518738. The cubic root of 4156557479 is about 1607.8465453370.

The spelling of 4156557479 in words is "four billion, one hundred fifty-six million, five hundred fifty-seven thousand, four hundred seventy-nine".