1549374081445 has 8 divisors (see below), whose sum is σ = 1859256166680. Its totient is φ = 1239494419200.

The previous prime is 1549374081413. The next prime is 1549374081461. The reversal of 1549374081445 is 5441804739451.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 195320686401 + 1354053395044 = 441951^2 + 1163638^2 .

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

It is not a de Polignac number, because 1549374081445 - 2⁵ = 1549374081413 is a prime.

It is a congruent 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, 1412145 + ... + 2256745.

It is an arithmetic number, because the mean of its divisors is an integer number (232407020835).

Almost surely, 2^{1549374081445} is an apocalyptic number.

It is an amenable number.

1549374081445 is a deficient number, since it is larger than the sum of its proper divisors (309882085235).

1549374081445 is an equidigital number, since it uses as much as digits as its factorization.

1549374081445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211495.

The product of its (nonzero) digits is 9676800, while the sum is 55.

The spelling of 1549374081445 in words is "one trillion, five hundred forty-nine billion, three hundred seventy-four million, eighty-one thousand, four hundred forty-five".