2745400515 has 32 divisors (see below), whose sum is σ = 5160589056. Its totient is φ = 1228709760.

The previous prime is 2745400513. The next prime is 2745400597. The reversal of 2745400515 is 5150045472.

It is not a de Polignac number, because 2745400515 - 2¹ = 2745400513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2745400513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637809 + ... + 642098.

It is an arithmetic number, because the mean of its divisors is an integer number (161268408).

Almost surely, 2^2745400515 is an apocalyptic number.

2745400515 is a deficient number, since it is larger than the sum of its proper divisors (2415188541).

2745400515 is a wasteful number, since it uses less digits than its factorization.

2745400515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279939.

The product of its (nonzero) digits is 28000, while the sum is 33.

The square root of 2745400515 is about 52396.5696873374. The cubic root of 2745400515 is about 1400.2381423124.

Adding to 2745400515 its reverse (5150045472), we get a palindrome (7895445987).

The spelling of 2745400515 in words is "two billion, seven hundred forty-five million, four hundred thousand, five hundred fifteen".