1921756794114 has 32 divisors (see below), whose sum is σ = 3860508798720. Its totient is φ = 637753370112.

The previous prime is 1921756794103. The next prime is 1921756794149. The reversal of 1921756794114 is 4114976571291.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41352039 + ... + 41398485.

It is an arithmetic number, because the mean of its divisors is an integer number (120640899960).

Almost surely, 2^{1921756794114} is an apocalyptic number.

1921756794114 is an abundant number, since it is smaller than the sum of its proper divisors (1938752004606).

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

1921756794114 is a wasteful number, since it uses less digits than its factorization.

1921756794114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76794.

The product of its digits is 3810240, while the sum is 57.

The spelling of 1921756794114 in words is "one trillion, nine hundred twenty-one billion, seven hundred fifty-six million, seven hundred ninety-four thousand, one hundred fourteen".