1406909107949 has 2 divisors, whose sum is σ = 1406909107950. Its totient is φ = 1406909107948.

The previous prime is 1406909107943. The next prime is 1406909107993. The reversal of 1406909107949 is 9497019096041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 821044393225 + 585864714724 = 906115^2 + 765418^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406909107949 - 2²⁰ = 1406908059373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406909107943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703454553974 + 703454553975.

It is an arithmetic number, because the mean of its divisors is an integer number (703454553975).

Almost surely, 2^{1406909107949} is an apocalyptic number.

It is an amenable number.

1406909107949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406909107949 is an equidigital number, since it uses as much as digits as its factorization.

1406909107949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4408992, while the sum is 59.

The spelling of 1406909107949 in words is "one trillion, four hundred six billion, nine hundred nine million, one hundred seven thousand, nine hundred forty-nine".