24651745145 has 16 divisors (see below), whose sum is σ = 29790501840. Its totient is φ = 19582627584.

The previous prime is 24651745141. The next prime is 24651745211. The reversal of 24651745145 is 54154715642.

It can be written as a sum of positive squares in 8 ways, for example, as 809914681 + 23841830464 = 28459^2 + 154408^2 .

It is not a de Polignac number, because 24651745145 - 2² = 24651745141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24651745096 and 24651745105.

It is not an unprimeable number, because it can be changed into a prime (24651745141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1256471 + ... + 1275939.

It is an arithmetic number, because the mean of its divisors is an integer number (1861906365).

Almost surely, 2^24651745145 is an apocalyptic number.

It is an amenable number.

24651745145 is a deficient number, since it is larger than the sum of its proper divisors (5138756695).

24651745145 is a wasteful number, since it uses less digits than its factorization.

24651745145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244.

The product of its digits is 672000, while the sum is 44.

The spelling of 24651745145 in words is "twenty-four billion, six hundred fifty-one million, seven hundred forty-five thousand, one hundred forty-five".