1374461991409 has 16 divisors (see below), whose sum is σ = 1649747191680. Its totient is φ = 1131255210240.

The previous prime is 1374461991403. The next prime is 1374461991421. The reversal of 1374461991409 is 9041991644731.

It is a cyclic number.

It is not a de Polignac number, because 1374461991409 - 2³ = 1374461991401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1374461991401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163661197 + ... + 163669594.

It is an arithmetic number, because the mean of its divisors is an integer number (103109199480).

Almost surely, 2^{1374461991409} is an apocalyptic number.

1374461991409 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1374461991409 is a deficient number, since it is larger than the sum of its proper divisors (275285200271).

1374461991409 is a wasteful number, since it uses less digits than its factorization.

1374461991409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327330840.

The product of its (nonzero) digits is 5878656, while the sum is 58.

The spelling of 1374461991409 in words is "one trillion, three hundred seventy-four billion, four hundred sixty-one million, nine hundred ninety-one thousand, four hundred nine".