1340354699247 has 8 divisors (see below), whose sum is σ = 1792009190656. Its totient is φ = 891135003672.

The previous prime is 1340354699171. The next prime is 1340354699261. The reversal of 1340354699247 is 7429964530431.

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

It is not a de Polignac number, because 1340354699247 - 2⁷ = 1340354699119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340354699267) 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, 608697673 + ... + 608699874.

It is an arithmetic number, because the mean of its divisors is an integer number (224001148832).

Almost surely, 2^{1340354699247} is an apocalyptic number.

1340354699247 is a deficient number, since it is larger than the sum of its proper divisors (451654491409).

1340354699247 is a wasteful number, since it uses less digits than its factorization.

1340354699247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217397917.

The product of its (nonzero) digits is 19595520, while the sum is 57.

The spelling of 1340354699247 in words is "one trillion, three hundred forty billion, three hundred fifty-four million, six hundred ninety-nine thousand, two hundred forty-seven".