24690328989 has 4 divisors (see below), whose sum is σ = 32920438656. Its totient is φ = 16460219324.

The previous prime is 24690328987. The next prime is 24690329051. The reversal of 24690328989 is 98982309642.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 24690328989 - 2¹ = 24690328987 is a prime.

It is a super-2 number, since 2×24690328989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24690328987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4115054829 + ... + 4115054834.

It is an arithmetic number, because the mean of its divisors is an integer number (8230109664).

Almost surely, 2^24690328989 is an apocalyptic number.

It is an amenable number.

24690328989 is a deficient number, since it is larger than the sum of its proper divisors (8230109667).

24690328989 is an equidigital number, since it uses as much as digits as its factorization.

24690328989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8230109666.

The product of its (nonzero) digits is 13436928, while the sum is 60.

The spelling of 24690328989 in words is "twenty-four billion, six hundred ninety million, three hundred twenty-eight thousand, nine hundred eighty-nine".