4372645523 has 4 divisors (see below), whose sum is σ = 4373660400. Its totient is φ = 4371630648.

The previous prime is 4372645451. The next prime is 4372645559. The reversal of 4372645523 is 3255462734.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4372645523 - 2¹⁶ = 4372579987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4372641523) 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, 500948 + ... + 509601.

It is an arithmetic number, because the mean of its divisors is an integer number (1093415100).

Almost surely, 2^4372645523 is an apocalyptic number.

4372645523 is a deficient number, since it is larger than the sum of its proper divisors (1014877).

4372645523 is a wasteful number, since it uses less digits than its factorization.

4372645523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014876.

The product of its digits is 604800, while the sum is 41.

The square root of 4372645523 is about 66125.9822082062. The cubic root of 4372645523 is about 1635.2397062411.

The spelling of 4372645523 in words is "four billion, three hundred seventy-two million, six hundred forty-five thousand, five hundred twenty-three".