2745061515 has 32 divisors (see below), whose sum is σ = 5577269760. Its totient is φ = 1254884832.

The previous prime is 2745061513. The next prime is 2745061531. The reversal of 2745061515 is 5151605472.

2745061515 is a `hidden beast` number, since 27 + 4 + 5 + 0 + 615 + 15 = 666.

It is not a de Polignac number, because 2745061515 - 2¹ = 2745061513 is a prime.

It is a super-2 number, since 2×2745061515² = 15070725442268190450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2745061515.

It is not an unprimeable number, because it can be changed into a prime (2745061511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1451469 + ... + 1453358.

It is an arithmetic number, because the mean of its divisors is an integer number (174289680).

Almost surely, 2^2745061515 is an apocalyptic number.

2745061515 is an abundant number, since it is smaller than the sum of its proper divisors (2832208245).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2745061515 is a wasteful number, since it uses less digits than its factorization.

2745061515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2904848 (or 2904842 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 2745061515 is about 52393.3346428723. The cubic root of 2745061515 is about 1400.1805064876.

Adding to 2745061515 its reverse (5151605472), we get a palindrome (7896666987).

The spelling of 2745061515 in words is "two billion, seven hundred forty-five million, sixty-one thousand, five hundred fifteen".