1909435632774 has 12 divisors (see below), whose sum is σ = 3818878035084. Its totient is φ = 636477416004.

The previous prime is 1909435632743. The next prime is 1909435632787. The reversal of 1909435632774 is 4772365349091.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3102699 + ... + 3666825.

It is an arithmetic number, because the mean of its divisors is an integer number (318239836257).

Almost surely, 2^{1909435632774} is an apocalyptic number.

1909435632774 is an abundant number, since it is smaller than the sum of its proper divisors (1909442402310).

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

1909435632774 is an frugal number, since it uses more digits than its factorization.

1909435632774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128259 (or 564132 counting only the distinct ones).

The product of its (nonzero) digits is 34292160, while the sum is 60.

The spelling of 1909435632774 in words is "one trillion, nine hundred nine billion, four hundred thirty-five million, six hundred thirty-two thousand, seven hundred seventy-four".