3526974531613 has 4 divisors (see below), whose sum is σ = 3798280264828. Its totient is φ = 3255668798400.

The previous prime is 3526974531601. The next prime is 3526974531677. The reversal of 3526974531613 is 3161354796253.

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 2398168154404 + 1128806377209 = 1548602^2 + 1062453^2 .

It is a cyclic number.

It is not a de Polignac number, because 3526974531613 - 2⁴¹ = 1327951276061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3526974531013) 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, 135652866588 + ... + 135652866613.

It is an arithmetic number, because the mean of its divisors is an integer number (949570066207).

Almost surely, 2^{3526974531613} is an apocalyptic number.

It is an amenable number.

3526974531613 is a deficient number, since it is larger than the sum of its proper divisors (271305733215).

3526974531613 is a wasteful number, since it uses less digits than its factorization.

3526974531613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271305733214.

The product of its digits is 12247200, while the sum is 55.

The spelling of 3526974531613 in words is "three trillion, five hundred twenty-six billion, nine hundred seventy-four million, five hundred thirty-one thousand, six hundred thirteen".