2578097269 has 18 divisors (see below), whose sum is σ = 2862044822. Its totient is φ = 2320573200.

The previous prime is 2578097267. The next prime is 2578097287. The reversal of 2578097269 is 9627908752.

2578097269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1331301169 + 1246796100 = 36487^2 + 35310^2 .

It is not a de Polignac number, because 2578097269 - 2¹ = 2578097267 is a prime.

It is a super-2 number, since 2×2578097269² = 13293171056850516722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578097267) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1384399 + ... + 1386259.

Almost surely, 2^2578097269 is an apocalyptic number.

It is an amenable number.

2578097269 is a deficient number, since it is larger than the sum of its proper divisors (283947553).

2578097269 is a wasteful number, since it uses less digits than its factorization.

2578097269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 2578097269 is about 50774.9669522295. The cubic root of 2578097269 is about 1371.1967217537.

The spelling of 2578097269 in words is "two billion, five hundred seventy-eight million, ninety-seven thousand, two hundred sixty-nine".