21527237741 has 8 divisors (see below), whose sum is σ = 22048257024. Its totient is φ = 21010472080.

The previous prime is 21527237723. The next prime is 21527237773. The reversal of 21527237741 is 14773272512.

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

It is a cyclic number.

It is not a de Polignac number, because 21527237741 - 2¹⁴ = 21527221357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21527231741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053161 + ... + 1073406.

It is an arithmetic number, because the mean of its divisors is an integer number (2756032128).

Almost surely, 2^21527237741 is an apocalyptic number.

It is an amenable number.

21527237741 is a deficient number, since it is larger than the sum of its proper divisors (521019283).

21527237741 is a wasteful number, since it uses less digits than its factorization.

21527237741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126811.

The product of its digits is 164640, while the sum is 41.

The spelling of 21527237741 in words is "twenty-one billion, five hundred twenty-seven million, two hundred thirty-seven thousand, seven hundred forty-one".