2127661959830 has 32 divisors (see below), whose sum is σ = 4178458891008. Its totient is φ = 773601832800.

The previous prime is 2127661959749. The next prime is 2127661959833. The reversal of 2127661959830 is 389591667212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2127661959830.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127661959833) 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, 249452 + ... + 2077871.

It is an arithmetic number, because the mean of its divisors is an integer number (130576840344).

Almost surely, 2^{2127661959830} is an apocalyptic number.

2127661959830 is a deficient number, since it is larger than the sum of its proper divisors (2050796931178).

2127661959830 is a wasteful number, since it uses less digits than its factorization.

2127661959830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335652.

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 2127661959830 in words is "two trillion, one hundred twenty-seven billion, six hundred sixty-one million, nine hundred fifty-nine thousand, eight hundred thirty".