1340037945819 has 6 divisors (see below), whose sum is σ = 1935610366196. Its totient is φ = 893358630540.

The previous prime is 1340037945811. The next prime is 1340037945833. The reversal of 1340037945819 is 9185497300431.

1340037945819 is a `hidden beast` number, since 13 + 40 + 0 + 3 + 7 + 9 + 4 + 581 + 9 = 666.

It is not a de Polignac number, because 1340037945819 - 2³ = 1340037945811 is a prime.

It is a super-2 number, since 2×1340037945819² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340037945811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74446552537 + ... + 74446552554.

Almost surely, 2^{1340037945819} is an apocalyptic number.

1340037945819 is a deficient number, since it is larger than the sum of its proper divisors (595572420377).

1340037945819 is a wasteful number, since it uses less digits than its factorization.

1340037945819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148893105097 (or 148893105094 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The spelling of 1340037945819 in words is "one trillion, three hundred forty billion, thirty-seven million, nine hundred forty-five thousand, eight hundred nineteen".