21141672537 has 8 divisors (see below), whose sum is σ = 28204929280. Its totient is φ = 14086432080.

The previous prime is 21141672527. The next prime is 21141672553. The reversal of 21141672537 is 73527614112.

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

It is not a de Polignac number, because 21141672537 - 2¹⁰ = 21141671513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21141672495 and 21141672504.

It is not an unprimeable number, because it can be changed into a prime (21141672527) 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, 1997914 + ... + 2008467.

It is an arithmetic number, because the mean of its divisors is an integer number (3525616160).

Almost surely, 2^21141672537 is an apocalyptic number.

It is an amenable number.

21141672537 is a deficient number, since it is larger than the sum of its proper divisors (7063256743).

21141672537 is a wasteful number, since it uses less digits than its factorization.

21141672537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008143.

The product of its digits is 70560, while the sum is 39.

The spelling of 21141672537 in words is "twenty-one billion, one hundred forty-one million, six hundred seventy-two thousand, five hundred thirty-seven".