4121953611 has 4 divisors (see below), whose sum is σ = 5495938152. Its totient is φ = 2747969072.

The previous prime is 4121953609. The next prime is 4121953621. The reversal of 4121953611 is 1163591214.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4121953611 - 2¹ = 4121953609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4121953621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686992266 + ... + 686992271.

It is an arithmetic number, because the mean of its divisors is an integer number (1373984538).

Almost surely, 2^4121953611 is an apocalyptic number.

4121953611 is a deficient number, since it is larger than the sum of its proper divisors (1373984541).

4121953611 is a wasteful number, since it uses less digits than its factorization.

4121953611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373984540.

The product of its digits is 6480, while the sum is 33.

The square root of 4121953611 is about 64202.4424068119. The cubic root of 4121953611 is about 1603.3722638367.

It can be divided in two parts, 41219 and 53611, that added together give a triangular number (94830 = T₄₃₅).

The spelling of 4121953611 in words is "four billion, one hundred twenty-one million, nine hundred fifty-three thousand, six hundred eleven".