1913821964754 has 16 divisors (see below), whose sum is σ = 4374450205248. Its totient is φ = 546806275632.

The previous prime is 1913821964749. The next prime is 1913821964773. The reversal of 1913821964754 is 4574691283191.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22783594777 + ... + 22783594860.

It is an arithmetic number, because the mean of its divisors is an integer number (273403137828).

Almost surely, 2^{1913821964754} is an apocalyptic number.

1913821964754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1913821964754 is an abundant number, since it is smaller than the sum of its proper divisors (2460628240494).

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

1913821964754 is a wasteful number, since it uses less digits than its factorization.

1913821964754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45567189649.

The product of its digits is 13063680, while the sum is 60.

The spelling of 1913821964754 in words is "one trillion, nine hundred thirteen billion, eight hundred twenty-one million, nine hundred sixty-four thousand, seven hundred fifty-four".