1909782991053 has 48 divisors (see below), whose sum is σ = 3169832140800. Its totient is φ = 1085366852640.

The previous prime is 1909782991019. The next prime is 1909782991087. The reversal of 1909782991053 is 3501992879091.

It is an interprime number because it is at equal distance from previous prime (1909782991019) and next prime (1909782991087).

It is not a de Polignac number, because 1909782991053 - 2⁶ = 1909782990989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1909782991153) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19078708 + ... + 19178546.

It is an arithmetic number, because the mean of its divisors is an integer number (66038169600).

Almost surely, 2^{1909782991053} is an apocalyptic number.

It is an amenable number.

1909782991053 is a deficient number, since it is larger than the sum of its proper divisors (1260049149747).

1909782991053 is a wasteful number, since it uses less digits than its factorization.

1909782991053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101502 (or 101499 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 63.

The spelling of 1909782991053 in words is "one trillion, nine hundred nine billion, seven hundred eighty-two million, nine hundred ninety-one thousand, fifty-three".