1909694346696 has 96 divisors (see below), whose sum is σ = 5369199675840. Its totient is φ = 635905867968.

The previous prime is 1909694346691. The next prime is 1909694346697. The reversal of 1909694346696 is 6966434969091.

1909694346696 is a `hidden beast` number, since 19 + 0 + 9 + 69 + 4 + 3 + 466 + 96 = 666.

It is a super-2 number, since 2×1909694346696² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (1909694346691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371910 + ... + 2387786.

It is an arithmetic number, because the mean of its divisors is an integer number (55929163290).

Almost surely, 2^{1909694346696} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1909694346696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2684599837920).

1909694346696 is an abundant number, since it is smaller than the sum of its proper divisors (3459505329144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1909694346696 is a wasteful number, since it uses less digits than its factorization.

1909694346696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016865 (or 1016849 counting only the distinct ones).

The product of its (nonzero) digits is 408146688, while the sum is 72.

The spelling of 1909694346696 in words is "one trillion, nine hundred nine billion, six hundred ninety-four million, three hundred forty-six thousand, six hundred ninety-six".