3518511705381 has 16 divisors (see below), whose sum is σ = 4951941467840. Its totient is φ = 2222217906192.

The previous prime is 3518511705281. The next prime is 3518511705433. The reversal of 3518511705381 is 1835071158153.

It is not a de Polignac number, because 3518511705381 - 2¹⁴ = 3518511688997 is a prime.

It is a super-2 number, since 2×3518511705381² (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 3518511705381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3518511705281) 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, 85475650 + ... + 85516803.

It is an arithmetic number, because the mean of its divisors is an integer number (309496341740).

Almost surely, 2^{3518511705381} is an apocalyptic number.

It is an amenable number.

3518511705381 is a deficient number, since it is larger than the sum of its proper divisors (1433429762459).

3518511705381 is an equidigital number, since it uses as much as digits as its factorization.

3518511705381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170992513 (or 170992475 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 48.

The spelling of 3518511705381 in words is "three trillion, five hundred eighteen billion, five hundred eleven million, seven hundred five thousand, three hundred eighty-one".