23440061535 has 32 divisors (see below), whose sum is σ = 41174203392. Its totient is φ = 11292478080.

The previous prime is 23440061479. The next prime is 23440061537. The reversal of 23440061535 is 53516004432.

It is not a de Polignac number, because 23440061535 - 2⁶ = 23440061471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 23440061496 and 23440061505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23440061537) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 426519 + ... + 478328.

It is an arithmetic number, because the mean of its divisors is an integer number (1286693856).

Almost surely, 2^23440061535 is an apocalyptic number.

23440061535 is a deficient number, since it is larger than the sum of its proper divisors (17734141857).

23440061535 is a wasteful number, since it uses less digits than its factorization.

23440061535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905023.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 23440061535 its reverse (53516004432), we get a palindrome (76956065967).

The spelling of 23440061535 in words is "twenty-three billion, four hundred forty million, sixty-one thousand, five hundred thirty-five".