2378032315569 has 45 divisors (see below), whose sum is σ = 3773998536187. Its totient is φ = 1491950667456.

The previous prime is 2378032315523. The next prime is 2378032315577. The reversal of 2378032315569 is 9655132308732.

The square root of 2378032315569 is 1542087.

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

2378032315569 is a `hidden beast` number, since 2 + 3 + 7 + 80 + 3 + 2 + 3 + 1 + 556 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1851409242225 + 526623073344 = 1360665^2 + 725688^2 .

It is not a de Polignac number, because 2378032315569 - 2¹⁷ = 2378032184497 is a prime.

It is a super-2 number, since 2×2378032315569² (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 (2378032395569) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 235934272 + ... + 235944350.

Almost surely, 2^{2378032315569} is an apocalyptic number.

2378032315569 is the 1542087-th square number.

2378032315569 is the 771044-th centered octagonal number.

It is an amenable number.

2378032315569 is a deficient number, since it is larger than the sum of its proper divisors (1395966220618).

2378032315569 is an frugal number, since it uses more digits than its factorization.

2378032315569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204 (or 10099 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 54.

The spelling of 2378032315569 in words is "two trillion, three hundred seventy-eight billion, thirty-two million, three hundred fifteen thousand, five hundred sixty-nine".