21383377514 has 24 divisors (see below), whose sum is σ = 32990525568. Its totient is φ = 10394794800.

The previous prime is 21383377481. The next prime is 21383377523. The reversal of 21383377514 is 41577338312.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5339837 + ... + 5343839.

It is an arithmetic number, because the mean of its divisors is an integer number (1374605232).

Almost surely, 2^21383377514 is an apocalyptic number.

21383377514 is a deficient number, since it is larger than the sum of its proper divisors (11607148054).

21383377514 is a wasteful number, since it uses less digits than its factorization.

21383377514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6030 (or 5993 counting only the distinct ones).

The product of its digits is 423360, while the sum is 44.

The spelling of 21383377514 in words is "twenty-one billion, three hundred eighty-three million, three hundred seventy-seven thousand, five hundred fourteen".