24002542397 has 2 divisors, whose sum is σ = 24002542398. Its totient is φ = 24002542396.

The previous prime is 24002542381. The next prime is 24002542451. The reversal of 24002542397 is 79324520042.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22746974041 + 1255568356 = 150821^2 + 35434^2 .

It is a cyclic number.

It is not a de Polignac number, because 24002542397 - 2⁴ = 24002542381 is a prime.

It is a super-2 number, since 2×24002542397² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 24002542397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24002541397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12001271198 + 12001271199.

It is an arithmetic number, because the mean of its divisors is an integer number (12001271199).

Almost surely, 2^24002542397 is an apocalyptic number.

It is an amenable number.

24002542397 is a deficient number, since it is larger than the sum of its proper divisors (1).

24002542397 is an equidigital number, since it uses as much as digits as its factorization.

24002542397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 24002542397 in words is "twenty-four billion, two million, five hundred forty-two thousand, three hundred ninety-seven".