1440306542545 has 8 divisors (see below), whose sum is σ = 1861319224296. Its totient is φ = 1063610985216.

The previous prime is 1440306542513. The next prime is 1440306542567. The reversal of 1440306542545 is 5452456030441.

It can be written as a sum of positive squares in 4 ways, for example, as 237356044864 + 1202950497681 = 487192^2 + 1096791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1440306542545 - 2⁵ = 1440306542513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11079281032 + ... + 11079281161.

It is an arithmetic number, because the mean of its divisors is an integer number (232664903037).

Almost surely, 2^{1440306542545} is an apocalyptic number.

It is an amenable number.

1440306542545 is a deficient number, since it is larger than the sum of its proper divisors (421012681751).

1440306542545 is a wasteful number, since it uses less digits than its factorization.

1440306542545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22158562211.

The product of its (nonzero) digits is 1152000, while the sum is 43.

The spelling of 1440306542545 in words is "one trillion, four hundred forty billion, three hundred six million, five hundred forty-two thousand, five hundred forty-five".