23439202549 has 8 divisors (see below), whose sum is σ = 27952341120. Its totient is φ = 19217234256.

The previous prime is 23439202499. The next prime is 23439202559. The reversal of 23439202549 is 94520293432.

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

It is a cyclic number.

It is not a de Polignac number, because 23439202549 - 2¹¹ = 23439200501 is a prime.

It is a super-2 number, since 2×23439202549² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23439202559) 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, 72792394 + ... + 72792715.

It is an arithmetic number, because the mean of its divisors is an integer number (3494042640).

Almost surely, 2^23439202549 is an apocalyptic number.

It is an amenable number.

23439202549 is a deficient number, since it is larger than the sum of its proper divisors (4513138571).

23439202549 is a wasteful number, since it uses less digits than its factorization.

23439202549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145585139.

The product of its (nonzero) digits is 466560, while the sum is 43.

The spelling of 23439202549 in words is "twenty-three billion, four hundred thirty-nine million, two hundred two thousand, five hundred forty-nine".