3515881258081 has 16 divisors (see below), whose sum is σ = 3726493295616. Its totient is φ = 3305692601856.

The previous prime is 3515881258073. The next prime is 3515881258093. The reversal of 3515881258081 is 1808521885153.

It is a cyclic number.

It is not a de Polignac number, because 3515881258081 - 2³ = 3515881258073 is a prime.

It is a super-2 number, since 2×3515881258081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3515881228081) 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, 73952740 + ... + 74000266.

It is an arithmetic number, because the mean of its divisors is an integer number (232905830976).

Almost surely, 2^{3515881258081} is an apocalyptic number.

It is an amenable number.

3515881258081 is a deficient number, since it is larger than the sum of its proper divisors (210612037535).

3515881258081 is a wasteful number, since it uses less digits than its factorization.

3515881258081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51888.

The product of its (nonzero) digits is 3072000, while the sum is 55.

The spelling of 3515881258081 in words is "three trillion, five hundred fifteen billion, eight hundred eighty-one million, two hundred fifty-eight thousand, eighty-one".