24112972649 has 4 divisors (see below), whose sum is σ = 24216462036. Its totient is φ = 24009483264.

The previous prime is 24112972627. The next prime is 24112972657. The reversal of 24112972649 is 94627921142.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3608164624 + 20504808025 = 60068^2 + 143195^2 .

It is a cyclic number.

It is not a de Polignac number, because 24112972649 - 2²⁰ = 24111924073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24112972549) 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, 51744344 + ... + 51744809.

It is an arithmetic number, because the mean of its divisors is an integer number (6054115509).

Almost surely, 2^24112972649 is an apocalyptic number.

It is an amenable number.

24112972649 is a deficient number, since it is larger than the sum of its proper divisors (103489387).

24112972649 is a wasteful number, since it uses less digits than its factorization.

24112972649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103489386.

The product of its digits is 435456, while the sum is 47.

The spelling of 24112972649 in words is "twenty-four billion, one hundred twelve million, nine hundred seventy-two thousand, six hundred forty-nine".