1448772121615 has 32 divisors (see below), whose sum is σ = 2144366775936. Its totient is φ = 915035650560.

The previous prime is 1448772121613. The next prime is 1448772121633. The reversal of 1448772121615 is 5161212778441.

It is not a de Polignac number, because 1448772121615 - 2¹ = 1448772121613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1448772121613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3243732 + ... + 3663241.

It is an arithmetic number, because the mean of its divisors is an integer number (67011461748).

Almost surely, 2^{1448772121615} is an apocalyptic number.

1448772121615 is a deficient number, since it is larger than the sum of its proper divisors (695594654321).

1448772121615 is a wasteful number, since it uses less digits than its factorization.

1448772121615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6907459.

The product of its digits is 752640, while the sum is 49.

The spelling of 1448772121615 in words is "one trillion, four hundred forty-eight billion, seven hundred seventy-two million, one hundred twenty-one thousand, six hundred fifteen".