3522130664781 has 4 divisors (see below), whose sum is σ = 4696174219712. Its totient is φ = 2348087109852.

The previous prime is 3522130664779. The next prime is 3522130664807. The reversal of 3522130664781 is 1874660312253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3522130664781 - 2¹ = 3522130664779 is a prime.

It is a super-2 number, since 2×3522130664781² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3522130664781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3522130664771) 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, 587021777461 + ... + 587021777466.

It is an arithmetic number, because the mean of its divisors is an integer number (1174043554928).

Almost surely, 2^{3522130664781} is an apocalyptic number.

It is an amenable number.

3522130664781 is a deficient number, since it is larger than the sum of its proper divisors (1174043554931).

3522130664781 is a wasteful number, since it uses less digits than its factorization.

3522130664781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1174043554930.

The product of its (nonzero) digits is 1451520, while the sum is 48.

The spelling of 3522130664781 in words is "three trillion, five hundred twenty-two billion, one hundred thirty million, six hundred sixty-four thousand, seven hundred eighty-one".