535039974121 has 4 divisors (see below), whose sum is σ = 536866049412. Its totient is φ = 533213898832.

The previous prime is 535039974089. The next prime is 535039974181. The reversal of 535039974121 is 121479930535.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 318688475625 + 216351498496 = 564525^2 + 465136^2 .

It is a cyclic number.

It is not a de Polignac number, because 535039974121 - 2⁵ = 535039974089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (535039974181) 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, 913037206 + ... + 913037791.

It is an arithmetic number, because the mean of its divisors is an integer number (134216512353).

Almost surely, 2^535039974121 is an apocalyptic number.

It is an amenable number.

535039974121 is a deficient number, since it is larger than the sum of its proper divisors (1826075291).

535039974121 is a wasteful number, since it uses less digits than its factorization.

535039974121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826075290.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The spelling of 535039974121 in words is "five hundred thirty-five billion, thirty-nine million, nine hundred seventy-four thousand, one hundred twenty-one".