3045335617921 has 9 divisors (see below), whose sum is σ = 3051044003529. Its totient is φ = 3039637902336.

The previous prime is 3045335617871. The next prime is 3045335617931. The reversal of 3045335617921 is 1297165335403.

The square root of 3045335617921 is 1745089.

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

It can be written as a sum of positive squares in 4 ways, for example, as 15647257921 + 3029688360000 = 125089^2 + 1740600^2 .

It is not a de Polignac number, because 3045335617921 - 2²³ = 3045327229313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3045335617931) 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, 1174443601 + ... + 1174446193.

It is an arithmetic number, because the mean of its divisors is an integer number (339004889281).

Almost surely, 2^{3045335617921} is an apocalyptic number.

3045335617921 is the 1745089-th square number.

3045335617921 is the 872545-th centered octagonal number.

It is an amenable number.

3045335617921 is a deficient number, since it is larger than the sum of its proper divisors (5708385608).

3045335617921 is an frugal number, since it uses more digits than its factorization.

3045335617921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532 (or 3266 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 49.

Multiplying 3045335617921 by its sum of digits (49), we get a square (149221445278129 = 12215623²).

The spelling of 3045335617921 in words is "three trillion, forty-five billion, three hundred thirty-five million, six hundred seventeen thousand, nine hundred twenty-one".