1340354699249 has 4 divisors (see below), whose sum is σ = 1410899683440. Its totient is φ = 1269809715060.

The previous prime is 1340354699171. The next prime is 1340354699261. The reversal of 1340354699249 is 9429964530431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1340354699249 - 2⁸ = 1340354698993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340354699149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35272492067 + ... + 35272492104.

It is an arithmetic number, because the mean of its divisors is an integer number (352724920860).

Almost surely, 2^{1340354699249} is an apocalyptic number.

1340354699249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1340354699249 is a deficient number, since it is larger than the sum of its proper divisors (70544984191).

1340354699249 is an equidigital number, since it uses as much as digits as its factorization.

1340354699249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70544984190.

The product of its (nonzero) digits is 25194240, while the sum is 59.

The spelling of 1340354699249 in words is "one trillion, three hundred forty billion, three hundred fifty-four million, six hundred ninety-nine thousand, two hundred forty-nine".