3501686866989 has 4 divisors (see below), whose sum is σ = 4668915822656. Its totient is φ = 2334457911324.

The previous prime is 3501686866981. The next prime is 3501686866999. The reversal of 3501686866989 is 9896686861053.

3501686866989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3501686866989 - 2³ = 3501686866981 is a prime.

It is a super-2 number, since 2×3501686866989² (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 3501686866989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3501686866981) 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, 583614477829 + ... + 583614477834.

It is an arithmetic number, because the mean of its divisors is an integer number (1167228955664).

Almost surely, 2^{3501686866989} is an apocalyptic number.

It is an amenable number.

3501686866989 is a deficient number, since it is larger than the sum of its proper divisors (1167228955667).

3501686866989 is a wasteful number, since it uses less digits than its factorization.

3501686866989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167228955666.

The product of its (nonzero) digits is 806215680, while the sum is 75.

The spelling of 3501686866989 in words is "three trillion, five hundred one billion, six hundred eighty-six million, eight hundred sixty-six thousand, nine hundred eighty-nine".