3313721451769 has 9 divisors (see below), whose sum is σ = 3405771257007. Its totient is φ = 3224095879464.

The previous prime is 3313721451739. The next prime is 3313721451779. The reversal of 3313721451769 is 9671541273133.

The square root of 3313721451769 is 1820363.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2965163461225 + 348557990544 = 1721965^2 + 590388^2 .

It is not a de Polignac number, because 3313721451769 - 2⁵ = 3313721451737 is a prime.

It is a super-2 number, since 2×3313721451769² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3313721451739) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 67328832 + ... + 67378030.

Almost surely, 2^{3313721451769} is an apocalyptic number.

3313721451769 is the 1820363-rd square number.

3313721451769 is the 910182-nd centered octagonal number.

It is an amenable number.

3313721451769 is a deficient number, since it is larger than the sum of its proper divisors (92049805238).

3313721451769 is an frugal number, since it uses more digits than its factorization.

3313721451769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98472 (or 49236 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 52.

The spelling of 3313721451769 in words is "three trillion, three hundred thirteen billion, seven hundred twenty-one million, four hundred fifty-one thousand, seven hundred sixty-nine".