1340961286947 has 8 divisors (see below), whose sum is σ = 1787959148544. Its totient is φ = 893968808328.

The previous prime is 1340961286939. The next prime is 1340961286981. The reversal of 1340961286947 is 7496821690431.

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

It is not a de Polignac number, because 1340961286947 - 2³ = 1340961286939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340961286547) 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, 723363 + ... + 1790300.

It is an arithmetic number, because the mean of its divisors is an integer number (223494893568).

Almost surely, 2^{1340961286947} is an apocalyptic number.

1340961286947 is a deficient number, since it is larger than the sum of its proper divisors (446997861597).

1340961286947 is a wasteful number, since it uses less digits than its factorization.

1340961286947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691489.

The product of its (nonzero) digits is 15676416, while the sum is 60.

The spelling of 1340961286947 in words is "one trillion, three hundred forty billion, nine hundred sixty-one million, two hundred eighty-six thousand, nine hundred forty-seven".