27060502640 has 160 divisors (see below), whose sum is σ = 66204905472. Its totient is φ = 10273536000.

The previous prime is 27060502631. The next prime is 27060502643. The reversal of 27060502640 is 4620506072.

It is a junction number, because it is equal to n+sod(n) for n = 27060502597 and 27060502606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27060502643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55112795 + ... + 55113285.

Almost surely, 2^27060502640 is an apocalyptic number.

27060502640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27060502640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33102452736).

27060502640 is an abundant number, since it is smaller than the sum of its proper divisors (39144402832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27060502640 is a wasteful number, since it uses less digits than its factorization.

27060502640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 913 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 27060502640 in words is "twenty-seven billion, sixty million, five hundred two thousand, six hundred forty".