2780326670 has 16 divisors (see below), whose sum is σ = 5459550768. Its totient is φ = 1011027840.

The previous prime is 2780326669. The next prime is 2780326673. The reversal of 2780326670 is 766230872.

2780326670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780326673) 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, 12637739 + ... + 12637958.

It is an arithmetic number, because the mean of its divisors is an integer number (341221923).

Almost surely, 2^2780326670 is an apocalyptic number.

2780326670 is a deficient number, since it is larger than the sum of its proper divisors (2679224098).

2780326670 is a wasteful number, since it uses less digits than its factorization.

2780326670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25275715.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 2780326670 is about 52728.8030397050. The cubic root of 2780326670 is about 1406.1509411836.

The spelling of 2780326670 in words is "two billion, seven hundred eighty million, three hundred twenty-six thousand, six hundred seventy".