1344354781587 has 8 divisors (see below), whose sum is σ = 1850294753280. Its totient is φ = 867325665480.

The previous prime is 1344354781579. The next prime is 1344354781589. The reversal of 1344354781587 is 7851874534431.

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

It is not a de Polignac number, because 1344354781587 - 2³ = 1344354781579 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344354781587.

It is not an unprimeable number, because it can be changed into a prime (1344354781589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7227713787 + ... + 7227713972.

It is an arithmetic number, because the mean of its divisors is an integer number (231286844160).

Almost surely, 2^{1344354781587} is an apocalyptic number.

1344354781587 is a deficient number, since it is larger than the sum of its proper divisors (505939971693).

1344354781587 is a wasteful number, since it uses less digits than its factorization.

1344354781587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14455427793.

The product of its digits is 45158400, while the sum is 60.

The spelling of 1344354781587 in words is "one trillion, three hundred forty-four billion, three hundred fifty-four million, seven hundred eighty-one thousand, five hundred eighty-seven".