3520351868687 has 16 divisors (see below), whose sum is σ = 3613489727232. Its totient is φ = 3427741437120.

The previous prime is 3520351868653. The next prime is 3520351868689. The reversal of 3520351868687 is 7868681530253.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3520351868687 - 2⁶ = 3520351868623 is a prime.

It is a super-2 number, since 2×3520351868687² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520351868689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19532012 + ... + 19711422.

It is an arithmetic number, because the mean of its divisors is an integer number (225843107952).

Almost surely, 2^{3520351868687} is an apocalyptic number.

3520351868687 is a deficient number, since it is larger than the sum of its proper divisors (93137858545).

3520351868687 is a wasteful number, since it uses less digits than its factorization.

3520351868687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180878.

The product of its (nonzero) digits is 58060800, while the sum is 62.

The spelling of 3520351868687 in words is "three trillion, five hundred twenty billion, three hundred fifty-one million, eight hundred sixty-eight thousand, six hundred eighty-seven".