27912665250140 has 48 divisors (see below), whose sum is σ = 63951409116000. Its totient is φ = 10149102862080.

The previous prime is 27912665250137. The next prime is 27912665250143. The reversal of 27912665250140 is 4105256621972.

It is an interprime number because it is at equal distance from previous prime (27912665250137) and next prime (27912665250143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27912665250143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3642515 + ... + 8312234.

It is an arithmetic number, because the mean of its divisors is an integer number (1332321023250).

Almost surely, 2^{27912665250140} is an apocalyptic number.

27912665250140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27912665250140 is an abundant number, since it is smaller than the sum of its proper divisors (36038743865860).

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

27912665250140 is a wasteful number, since it uses less digits than its factorization.

27912665250140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11965382 (or 11965380 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 27912665250140 in words is "twenty-seven trillion, nine hundred twelve billion, six hundred sixty-five million, two hundred fifty thousand, one hundred forty".