1921714840331 has 32 divisors (see below), whose sum is σ = 2344463364096. Its totient is φ = 1551262032000.

The previous prime is 1921714840277. The next prime is 1921714840387. The reversal of 1921714840331 is 1330484171291.

It is a cyclic number.

It is not a de Polignac number, because 1921714840331 - 2³⁰ = 1920641098507 is a prime.

It is a super-2 number, since 2×1921714840331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1921714849331) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 557600 + ... + 2038221.

It is an arithmetic number, because the mean of its divisors is an integer number (73264480128).

Almost surely, 2^{1921714840331} is an apocalyptic number.

1921714840331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1921714840331 is a deficient number, since it is larger than the sum of its proper divisors (422748523765).

1921714840331 is a wasteful number, since it uses less digits than its factorization.

1921714840331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596043.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 1921714840331 in words is "one trillion, nine hundred twenty-one billion, seven hundred fourteen million, eight hundred forty thousand, three hundred thirty-one".