3387051720505 has 4 divisors (see below), whose sum is σ = 4064462064612. Its totient is φ = 2709641376400.

The previous prime is 3387051720421. The next prime is 3387051720557. The reversal of 3387051720505 is 5050271507833.

3387051720505 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2375198804224 + 1011852916281 = 1541168^2 + 1005909^2 .

It is not a de Polignac number, because 3387051720505 - 2¹³ = 3387051712313 is a prime.

It is a super-2 number, since 2×3387051720505² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338705172046 + ... + 338705172055.

It is an arithmetic number, because the mean of its divisors is an integer number (1016115516153).

Almost surely, 2^{3387051720505} is an apocalyptic number.

It is an amenable number.

3387051720505 is a deficient number, since it is larger than the sum of its proper divisors (677410344107).

3387051720505 is an equidigital number, since it uses as much as digits as its factorization.

3387051720505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677410344106.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 3387051720505 in words is "three trillion, three hundred eighty-seven billion, fifty-one million, seven hundred twenty thousand, five hundred five".