2660764390 has 16 divisors (see below), whose sum is σ = 4790232720. Its totient is φ = 1064115360.

The previous prime is 2660764369. The next prime is 2660764391. The reversal of 2660764390 is 934670662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660764391) 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, 44125 + ... + 85255.

It is an arithmetic number, because the mean of its divisors is an integer number (299389545).

Almost surely, 2^2660764390 is an apocalyptic number.

2660764390 is a deficient number, since it is larger than the sum of its proper divisors (2129468330).

2660764390 is a wasteful number, since it uses less digits than its factorization.

2660764390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47607.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 2660764390 is about 51582.5977438128. The cubic root of 2660764390 is about 1385.6986904247.

The spelling of 2660764390 in words is "two billion, six hundred sixty million, seven hundred sixty-four thousand, three hundred ninety".