2745691008 has 128 divisors (see below), whose sum is σ = 7458272640. Its totient is φ = 894720000.

The previous prime is 2745691001. The next prime is 2745691027. The reversal of 2745691008 is 8001965472.

2745691008 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×2745691008² = 15077638222824112128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745691001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5879191 + ... + 5879657.

It is an arithmetic number, because the mean of its divisors is an integer number (58267755).

Almost surely, 2^2745691008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2745691008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3729136320).

2745691008 is an abundant number, since it is smaller than the sum of its proper divisors (4712581632).

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

2745691008 is a wasteful number, since it uses less digits than its factorization.

2745691008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 2745691008 is about 52399.3416752539. The cubic root of 2745691008 is about 1400.2875273391.

The spelling of 2745691008 in words is "two billion, seven hundred forty-five million, six hundred ninety-one thousand, eight".