12427664571541 has 8 divisors (see below), whose sum is σ = 12503642518080. Its totient is φ = 12351705206208.

The previous prime is 12427664571499. The next prime is 12427664571607. The reversal of 12427664571541 is 14517546672421.

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

It is not a de Polignac number, because 12427664571541 - 2²¹ = 12427662474389 is a prime.

It is a super-2 number, since 2×12427664571541² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12427664577541) 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, 3302371 + ... + 5980048.

It is an arithmetic number, because the mean of its divisors is an integer number (1562955314760).

Almost surely, 2^{12427664571541} is an apocalyptic number.

It is an amenable number.

12427664571541 is a deficient number, since it is larger than the sum of its proper divisors (75977946539).

12427664571541 is an equidigital number, since it uses as much as digits as its factorization.

12427664571541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290603.

The product of its digits is 11289600, while the sum is 55.

The spelling of 12427664571541 in words is "twelve trillion, four hundred twenty-seven billion, six hundred sixty-four million, five hundred seventy-one thousand, five hundred forty-one".