1455478551215 has 16 divisors (see below), whose sum is σ = 1880973275328. Its totient is φ = 1074787988736.

The previous prime is 1455478551181. The next prime is 1455478551223. The reversal of 1455478551215 is 5121558745541.

It is a cyclic number.

It is not a de Polignac number, because 1455478551215 - 2¹⁰ = 1455478550191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 2550467 + ... + 3068523.

It is an arithmetic number, because the mean of its divisors is an integer number (117560829708).

Almost surely, 2^{1455478551215} is an apocalyptic number.

1455478551215 is a deficient number, since it is larger than the sum of its proper divisors (425494724113).

1455478551215 is a wasteful number, since it uses less digits than its factorization.

1455478551215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561298.

The product of its digits is 5600000, while the sum is 53.

The spelling of 1455478551215 in words is "one trillion, four hundred fifty-five billion, four hundred seventy-eight million, five hundred fifty-one thousand, two hundred fifteen".