24454545921 has 32 divisors (see below), whose sum is σ = 40712152320. Its totient is φ = 14394644352.

The previous prime is 24454545877. The next prime is 24454545959. The reversal of 24454545921 is 12954545442.

24454545921 is a `hidden beast` number, since 2 + 4 + 4 + 5 + 4 + 54 + 592 + 1 = 666.

It is not a de Polignac number, because 24454545921 - 2¹³ = 24454537729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (24454545121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1506516 + ... + 1522661.

It is an arithmetic number, because the mean of its divisors is an integer number (1272254760).

Almost surely, 2^24454545921 is an apocalyptic number.

It is an amenable number.

24454545921 is a deficient number, since it is larger than the sum of its proper divisors (16257606399).

24454545921 is a wasteful number, since it uses less digits than its factorization.

24454545921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3029222 (or 3029216 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The spelling of 24454545921 in words is "twenty-four billion, four hundred fifty-four million, five hundred forty-five thousand, nine hundred twenty-one".