4548649251 has 32 divisors (see below), whose sum is σ = 6640939008. Its totient is φ = 2756920320.

The previous prime is 4548649207. The next prime is 4548649277. The reversal of 4548649251 is 1529468454.

It is not a de Polignac number, because 4548649251 - 2¹⁰ = 4548648227 is a prime.

It is a super-2 number, since 2×4548649251² = 41380420017245722002, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 4548649251.

It is not an unprimeable number, because it can be changed into a prime (4548649351) 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, 973146 + ... + 977808.

It is an arithmetic number, because the mean of its divisors is an integer number (207529344).

Almost surely, 2^4548649251 is an apocalyptic number.

4548649251 is a deficient number, since it is larger than the sum of its proper divisors (2092289757).

4548649251 is a wasteful number, since it uses less digits than its factorization.

4548649251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331.

The product of its digits is 1382400, while the sum is 48.

The square root of 4548649251 is about 67443.6746552262. The cubic root of 4548649251 is about 1656.8918045496.

The spelling of 4548649251 in words is "four billion, five hundred forty-eight million, six hundred forty-nine thousand, two hundred fifty-one".