21075379083 has 12 divisors (see below), whose sum is σ = 33209688408. Its totient is φ = 12772956960.

The previous prime is 21075379057. The next prime is 21075379103. The reversal of 21075379083 is 38097357012.

It is a happy number.

21075379083 is a `hidden beast` number, since 2 + 107 + 537 + 9 + 0 + 8 + 3 = 666.

It is not a de Polignac number, because 21075379083 - 2⁵ = 21075379051 is a prime.

It is a super-3 number, since 3×21075379083³ (a number of 32 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (21075374083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106441210 + ... + 106441407.

It is an arithmetic number, because the mean of its divisors is an integer number (2767474034).

Almost surely, 2^21075379083 is an apocalyptic number.

21075379083 is a deficient number, since it is larger than the sum of its proper divisors (12134309325).

21075379083 is a wasteful number, since it uses less digits than its factorization.

21075379083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212882634 (or 212882631 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 21075379083 in words is "twenty-one billion, seventy-five million, three hundred seventy-nine thousand, eighty-three".