2780062906 has 16 divisors (see below), whose sum is σ = 4213145664. Its totient is φ = 1375697664.

The previous prime is 2780062889. The next prime is 2780062907. The reversal of 2780062906 is 6092600872.

2780062906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2780062906² = 15457499522634329672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2780062907) 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, 464026 + ... + 469978.

It is an arithmetic number, because the mean of its divisors is an integer number (263321604).

Almost surely, 2^2780062906 is an apocalyptic number.

2780062906 is a deficient number, since it is larger than the sum of its proper divisors (1433082758).

2780062906 is a wasteful number, since it uses less digits than its factorization.

2780062906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8325.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 2780062906 is about 52726.3018426288. The cubic root of 2780062906 is about 1406.1064735400.

The spelling of 2780062906 in words is "two billion, seven hundred eighty million, sixty-two thousand, nine hundred six".