5156321423 has 16 divisors (see below), whose sum is σ = 5831170560. Its totient is φ = 4516495200.

The previous prime is 5156321381. The next prime is 5156321431. The reversal of 5156321423 is 3241236515.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5156321423 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 5156321423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5156321453) 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, 138758 + ... + 171948.

It is an arithmetic number, because the mean of its divisors is an integer number (364448160).

Almost surely, 2^5156321423 is an apocalyptic number.

5156321423 is a deficient number, since it is larger than the sum of its proper divisors (674849137).

5156321423 is a wasteful number, since it uses less digits than its factorization.

5156321423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33718.

The product of its digits is 21600, while the sum is 32.

The square root of 5156321423 is about 71807.5304059400. The cubic root of 5156321423 is about 1727.6137842443.

Adding to 5156321423 its reverse (3241236515), we get a palindrome (8397557938).

The spelling of 5156321423 in words is "five billion, one hundred fifty-six million, three hundred twenty-one thousand, four hundred twenty-three".