24628440493 has 4 divisors (see below), whose sum is σ = 24629265148. Its totient is φ = 24627615840.

The previous prime is 24628440467. The next prime is 24628440541. The reversal of 24628440493 is 39404482642.

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 21742387209 + 2886053284 = 147453^2 + 53722^2 .

It is a cyclic number.

It is not a de Polignac number, because 24628440493 - 2²¹ = 24626343341 is a prime.

It is a super-2 number, since 2×24628440493² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24628440293) 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, 365778 + ... + 427843.

It is an arithmetic number, because the mean of its divisors is an integer number (6157316287).

Almost surely, 2^24628440493 is an apocalyptic number.

It is an amenable number.

24628440493 is a deficient number, since it is larger than the sum of its proper divisors (824655).

24628440493 is an equidigital number, since it uses as much as digits as its factorization.

24628440493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824654.

The product of its (nonzero) digits is 1327104, while the sum is 46.

The spelling of 24628440493 in words is "twenty-four billion, six hundred twenty-eight million, four hundred forty thousand, four hundred ninety-three".