2064708780 has 96 divisors (see below), whose sum is σ = 5981041920. Its totient is φ = 531774720.

The previous prime is 2064708733. The next prime is 2064708787. The reversal of 2064708780 is 878074602.

It is not an unprimeable number, because it can be changed into a prime (2064708787) 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, 305235 + ... + 311925.

It is an arithmetic number, because the mean of its divisors is an integer number (62302520).

Almost surely, 2^2064708780 is an apocalyptic number.

2064708780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2064708780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2990520960).

2064708780 is an abundant number, since it is smaller than the sum of its proper divisors (3916333140).

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

2064708780 is a wasteful number, since it uses less digits than its factorization.

2064708780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6879 (or 6877 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 2064708780 is about 45439.0666717528. The cubic root of 2064708780 is about 1273.3650770726.

The spelling of 2064708780 in words is "two billion, sixty-four million, seven hundred eight thousand, seven hundred eighty".