2127661723 has 16 divisors (see below), whose sum is σ = 2374966656. Its totient is φ = 1889835840.

The previous prime is 2127661699. The next prime is 2127661747. The reversal of 2127661723 is 3271667212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2127661699) and next prime (2127661747).

It is a cyclic number.

It is not a de Polignac number, because 2127661723 - 2¹³ = 2127653531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2127662723) 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, 73540 + ... + 98302.

It is an arithmetic number, because the mean of its divisors is an integer number (148435416).

Almost surely, 2^2127661723 is an apocalyptic number.

2127661723 is a deficient number, since it is larger than the sum of its proper divisors (247304933).

2127661723 is a wasteful number, since it uses less digits than its factorization.

2127661723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24954.

The product of its digits is 42336, while the sum is 37.

The square root of 2127661723 is about 46126.5836909694. The cubic root of 2127661723 is about 1286.1773587626.

The spelling of 2127661723 in words is "two billion, one hundred twenty-seven million, six hundred sixty-one thousand, seven hundred twenty-three".