4448249157157 has 16 divisors (see below), whose sum is σ = 4833302121648. Its totient is φ = 4069329223680.

The previous prime is 4448249157151. The next prime is 4448249157179. The reversal of 4448249157157 is 7517519428444.

It can be written as a sum of positive squares in 8 ways, for example, as 2026369332036 + 2421879825121 = 1423506^2 + 1556239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4448249157157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4448249157095 and 4448249157104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4448249157151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14943657 + ... + 15238417.

It is an arithmetic number, because the mean of its divisors is an integer number (302081382603).

Almost surely, 2^{4448249157157} is an apocalyptic number.

It is an amenable number.

4448249157157 is a deficient number, since it is larger than the sum of its proper divisors (385052964491).

4448249157157 is a wasteful number, since it uses less digits than its factorization.

4448249157157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305160.

The product of its digits is 45158400, while the sum is 61.

The spelling of 4448249157157 in words is "four trillion, four hundred forty-eight billion, two hundred forty-nine million, one hundred fifty-seven thousand, one hundred fifty-seven".