27515072340 has 72 divisors (see below), whose sum is σ = 95385588480. Its totient is φ = 6289159104.

The previous prime is 27515072323. The next prime is 27515072341. The reversal of 27515072340 is 4327051572.

27515072340 is a `hidden beast` number, since 275 + 150 + 7 + 234 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 27515072295 and 27515072304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27515072341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10917420 + ... + 10919939.

It is an arithmetic number, because the mean of its divisors is an integer number (1324799840).

Almost surely, 2^27515072340 is an apocalyptic number.

27515072340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27515072340 is an abundant number, since it is smaller than the sum of its proper divisors (67870516140).

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

27515072340 is a wasteful number, since it uses less digits than its factorization.

27515072340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21837381 (or 21837376 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 27515072340 in words is "twenty-seven billion, five hundred fifteen million, seventy-two thousand, three hundred forty".