3500020388855 has 8 divisors (see below), whose sum is σ = 4200040000032. Its totient is φ = 2800005955488.

The previous prime is 3500020388833. The next prime is 3500020388857. The reversal of 3500020388855 is 5588830200053.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3500020388855 - 2¹² = 3500020384759 is a prime.

It is a super-2 number, since 2×3500020388855² (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 (3500020388857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392549 + ... + 2674721.

It is an arithmetic number, because the mean of its divisors is an integer number (525005000004).

Almost surely, 2^{3500020388855} is an apocalyptic number.

3500020388855 is a deficient number, since it is larger than the sum of its proper divisors (700019611177).

3500020388855 is a wasteful number, since it uses less digits than its factorization.

3500020388855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588905.

The product of its (nonzero) digits is 1152000, while the sum is 47.

The spelling of 3500020388855 in words is "three trillion, five hundred billion, twenty million, three hundred eighty-eight thousand, eight hundred fifty-five".