27541315641 has 48 divisors (see below), whose sum is σ = 42610780160. Its totient is φ = 15500056320.

The previous prime is 27541315639. The next prime is 27541315649. The reversal of 27541315641 is 14651314572.

It is not a de Polignac number, because 27541315641 - 2¹ = 27541315639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27541315641.

It is not an unprimeable number, because it can be changed into a prime (27541315649) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72668190 + ... + 72668568.

Almost surely, 2^27541315641 is an apocalyptic number.

27541315641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

27541315641 is a deficient number, since it is larger than the sum of its proper divisors (15069464519).

27541315641 is a wasteful number, since it uses less digits than its factorization.

27541315641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 773 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The spelling of 27541315641 in words is "twenty-seven billion, five hundred forty-one million, three hundred fifteen thousand, six hundred forty-one".