43671523423 has 16 divisors (see below), whose sum is σ = 47890282752. Its totient is φ = 39494520000.

The previous prime is 43671523381. The next prime is 43671523457. The reversal of 43671523423 is 32432517634.

It is a cyclic number.

It is not a de Polignac number, because 43671523423 - 2²⁵ = 43637968991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43671523523) 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, 2993998 + ... + 3008548.

It is an arithmetic number, because the mean of its divisors is an integer number (2993142672).

Almost surely, 2^43671523423 is an apocalyptic number.

43671523423 is a deficient number, since it is larger than the sum of its proper divisors (4218759329).

43671523423 is a wasteful number, since it uses less digits than its factorization.

43671523423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15966.

The product of its digits is 362880, while the sum is 40.

The spelling of 43671523423 in words is "forty-three billion, six hundred seventy-one million, five hundred twenty-three thousand, four hundred twenty-three".