24149689969 has 2 divisors, whose sum is σ = 24149689970. Its totient is φ = 24149689968.

The previous prime is 24149689939. The next prime is 24149689973. The reversal of 24149689969 is 96998694142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22232301025 + 1917388944 = 149105^2 + 43788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24149689969 is a prime.

It is a super-2 number, since 2×24149689969² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (24149689919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12074844984 + 12074844985.

It is an arithmetic number, because the mean of its divisors is an integer number (12074844985).

Almost surely, 2^24149689969 is an apocalyptic number.

It is an amenable number.

24149689969 is a deficient number, since it is larger than the sum of its proper divisors (1).

24149689969 is an equidigital number, since it uses as much as digits as its factorization.

24149689969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60466176, while the sum is 67.

The spelling of 24149689969 in words is "twenty-four billion, one hundred forty-nine million, six hundred eighty-nine thousand, nine hundred sixty-nine".