24690328987 has 2 divisors, whose sum is σ = 24690328988. Its totient is φ = 24690328986.

The previous prime is 24690328979. The next prime is 24690329051. The reversal of 24690328987 is 78982309642.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 24690328987 - 2³ = 24690328979 is a prime.

It is a super-2 number, since 2×24690328987² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24690328907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12345164493 + 12345164494.

It is an arithmetic number, because the mean of its divisors is an integer number (12345164494).

Almost surely, 2^24690328987 is an apocalyptic number.

24690328987 is a deficient number, since it is larger than the sum of its proper divisors (1).

24690328987 is an equidigital number, since it uses as much as digits as its factorization.

24690328987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 24690328987 in words is "twenty-four billion, six hundred ninety million, three hundred twenty-eight thousand, nine hundred eighty-seven".