23934227557 has 4 divisors (see below), whose sum is σ = 23944248460. Its totient is φ = 23924206656.

The previous prime is 23934227543. The next prime is 23934227573. The reversal of 23934227557 is 75572243932.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2888632516 + 21045595041 = 53746^2 + 145071^2 .

It is a cyclic number.

It is not a de Polignac number, because 23934227557 - 2²³ = 23925838949 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 23934227557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23934227357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5006868 + ... + 5011645.

It is an arithmetic number, because the mean of its divisors is an integer number (5986062115).

Almost surely, 2^23934227557 is an apocalyptic number.

It is an amenable number.

23934227557 is a deficient number, since it is larger than the sum of its proper divisors (10020903).

23934227557 is a wasteful number, since it uses less digits than its factorization.

23934227557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10020902.

The product of its digits is 3175200, while the sum is 49.

The spelling of 23934227557 in words is "twenty-three billion, nine hundred thirty-four million, two hundred twenty-seven thousand, five hundred fifty-seven".