2745064861 has 16 divisors (see below), whose sum is σ = 3540435840. Its totient is φ = 2065250880.

The previous prime is 2745064813. The next prime is 2745064873. The reversal of 2745064861 is 1684605472.

It is not a de Polignac number, because 2745064861 - 2¹⁵ = 2745032093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745064801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612426 + ... + 616891.

It is an arithmetic number, because the mean of its divisors is an integer number (221277240).

Almost surely, 2^2745064861 is an apocalyptic number.

It is an amenable number.

2745064861 is a deficient number, since it is larger than the sum of its proper divisors (795370979).

2745064861 is a wasteful number, since it uses less digits than its factorization.

2745064861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229364.

The product of its (nonzero) digits is 322560, while the sum is 43.

The square root of 2745064861 is about 52393.3665744052. The cubic root of 2745064861 is about 1400.1810753883.

The spelling of 2745064861 in words is "two billion, seven hundred forty-five million, sixty-four thousand, eight hundred sixty-one".