1909125705411 has 96 divisors (see below), whose sum is σ = 2973609999360. Its totient is φ = 1180163174400.

The previous prime is 1909125705349. The next prime is 1909125705413. The reversal of 1909125705411 is 1145075219091.

1909125705411 is a `hidden beast` number, since 1 + 9 + 0 + 9 + 12 + 570 + 54 + 11 = 666.

It is not a de Polignac number, because 1909125705411 - 2²² = 1909121511107 is a prime.

It is a super-2 number, since 2×1909125705411² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1909125705413) 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 95 ways as a sum of consecutive naturals, for example, 904369246 + ... + 904371356.

It is an arithmetic number, because the mean of its divisors is an integer number (30975104160).

Almost surely, 2^{1909125705411} is an apocalyptic number.

1909125705411 is a deficient number, since it is larger than the sum of its proper divisors (1064484293949).

1909125705411 is a wasteful number, since it uses less digits than its factorization.

1909125705411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2462 (or 2425 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The spelling of 1909125705411 in words is "one trillion, nine hundred nine billion, one hundred twenty-five million, seven hundred five thousand, four hundred eleven".