1921827514 has 16 divisors (see below), whose sum is σ = 3014392320. Its totient is φ = 917205520.

The previous prime is 1921827493. The next prime is 1921827553. The reversal of 1921827514 is 4157281291.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21577 + ... + 65644.

It is an arithmetic number, because the mean of its divisors is an integer number (188399520).

Almost surely, 2^1921827514 is an apocalyptic number.

1921827514 is a deficient number, since it is larger than the sum of its proper divisors (1092564806).

1921827514 is a wasteful number, since it uses less digits than its factorization.

1921827514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87725.

The product of its digits is 40320, while the sum is 40.

The square root of 1921827514 is about 43838.6531955534. The cubic root of 1921827514 is about 1243.2872183676.

The spelling of 1921827514 in words is "one billion, nine hundred twenty-one million, eight hundred twenty-seven thousand, five hundred fourteen".