2705791770 has 128 divisors (see below), whose sum is σ = 8054830080. Its totient is φ = 640664640.

The previous prime is 2705791733. The next prime is 2705791771. The reversal of 2705791770 is 771975072.

2705791770 is a `hidden beast` number, since 2 + 7 + 0 + 579 + 1 + 7 + 70 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2705791771) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 117117 + ... + 138303.

It is an arithmetic number, because the mean of its divisors is an integer number (62928360).

Almost surely, 2^2705791770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2705791770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4027415040).

2705791770 is an abundant number, since it is smaller than the sum of its proper divisors (5349038310).

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

2705791770 is a wasteful number, since it uses less digits than its factorization.

2705791770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21257 (or 21251 counting only the distinct ones).

The product of its (nonzero) digits is 216090, while the sum is 45.

The square root of 2705791770 is about 52017.2257045683. The cubic root of 2705791770 is about 1393.4716062165.

The spelling of 2705791770 in words is "two billion, seven hundred five million, seven hundred ninety-one thousand, seven hundred seventy".