2069864780 has 24 divisors (see below), whose sum is σ = 4401741120. Its totient is φ = 817464960.

The previous prime is 2069864779. The next prime is 2069864789. The reversal of 2069864780 is 874689602.

It is not an unprimeable number, because it can be changed into a prime (2069864789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653441 + ... + 656600.

It is an arithmetic number, because the mean of its divisors is an integer number (183405880).

Almost surely, 2^2069864780 is an apocalyptic number.

2069864780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2069864780 is an abundant number, since it is smaller than the sum of its proper divisors (2331876340).

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

2069864780 is a wasteful number, since it uses less digits than its factorization.

2069864780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310129 (or 1310127 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The square root of 2069864780 is about 45495.7666162468. The cubic root of 2069864780 is about 1274.4241469784.

The spelling of 2069864780 in words is "two billion, sixty-nine million, eight hundred sixty-four thousand, seven hundred eighty".