2127661749430 has 32 divisors (see below), whose sum is σ = 4459487275584. Its totient is φ = 715720177536.

The previous prime is 2127661749383. The next prime is 2127661749431. The reversal of 2127661749430 is 349471667212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127661749431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286743157 + ... + 286750576.

It is an arithmetic number, because the mean of its divisors is an integer number (139358977362).

Almost surely, 2^{2127661749430} is an apocalyptic number.

2127661749430 is an abundant number, since it is smaller than the sum of its proper divisors (2331825526154).

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

2127661749430 is a wasteful number, since it uses less digits than its factorization.

2127661749430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573493800.

The product of its (nonzero) digits is 3048192, while the sum is 52.

The spelling of 2127661749430 in words is "two trillion, one hundred twenty-seven billion, six hundred sixty-one million, seven hundred forty-nine thousand, four hundred thirty".