2127542341278 has 16 divisors (see below), whose sum is σ = 4335369299856. Its totient is φ = 695800010880.

The previous prime is 2127542341273. The next prime is 2127542341291. The reversal of 2127542341278 is 8721432457212.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127542341273) 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, 3345192043 + ... + 3345192678.

It is an arithmetic number, because the mean of its divisors is an integer number (270960581241).

Almost surely, 2^{2127542341278} is an apocalyptic number.

2127542341278 is an abundant number, since it is smaller than the sum of its proper divisors (2207826958578).

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

2127542341278 is a wasteful number, since it uses less digits than its factorization.

2127542341278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690384779.

The product of its digits is 1505280, while the sum is 48.

The spelling of 2127542341278 in words is "two trillion, one hundred twenty-seven billion, five hundred forty-two million, three hundred forty-one thousand, two hundred seventy-eight".