21376387083 has 8 divisors (see below), whose sum is σ = 29164683328. Its totient is φ = 13919507784.

The previous prime is 21376387079. The next prime is 21376387093. The reversal of 21376387083 is 38078367312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21376387083 - 2² = 21376387079 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21376387003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82854085 + ... + 82854342.

It is an arithmetic number, because the mean of its divisors is an integer number (3645585416).

Almost surely, 2^21376387083 is an apocalyptic number.

21376387083 is a deficient number, since it is larger than the sum of its proper divisors (7788296245).

21376387083 is a wasteful number, since it uses less digits than its factorization.

21376387083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165708473.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 21376387083 in words is "twenty-one billion, three hundred seventy-six million, three hundred eighty-seven thousand, eighty-three".