2118832495641 has 9 divisors (see below), whose sum is σ = 3060542134741. Its totient is φ = 1412552085852.

The previous prime is 2118832495613. The next prime is 2118832495709. The reversal of 2118832495641 is 1465942388112.

The square root of 2118832495641 is 1455621.

It is a perfect power (a square), and thus also a powerful number.

2118832495641 is a `hidden beast` number, since 2 + 1 + 1 + 8 + 8 + 32 + 49 + 564 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2118832495641 - 2⁷ = 2118832495513 is a prime.

It is a super-2 number, since 2×2118832495641² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2118832495141) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4124260 + ... + 4609466.

Almost surely, 2^{2118832495641} is an apocalyptic number.

2118832495641 is the 1455621-st square number.

2118832495641 is the 727811-st centered octagonal number.

It is an amenable number.

2118832495641 is a deficient number, since it is larger than the sum of its proper divisors (941709639100).

2118832495641 is an frugal number, since it uses more digits than its factorization.

2118832495641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 970420 (or 485210 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 2118832495641 in words is "two trillion, one hundred eighteen billion, eight hundred thirty-two million, four hundred ninety-five thousand, six hundred forty-one".