2763981990 has 192 divisors, whose sum is σ = 9349696512. Its totient is φ = 549331200.

The previous prime is 2763981989. The next prime is 2763982007. The reversal of 2763981990 is 991893672.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 150720 + ... + 168060.

It is an arithmetic number, because the mean of its divisors is an integer number (48696336).

Almost surely, 2^2763981990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2763981990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4674848256).

2763981990 is an abundant number, since it is smaller than the sum of its proper divisors (6585714522).

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

2763981990 is a wasteful number, since it uses less digits than its factorization.

2763981990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17395 (or 17392 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 2763981990 is about 52573.5864289284. The cubic root of 2763981990 is about 1403.3900819533.

The spelling of 2763981990 in words is "two billion, seven hundred sixty-three million, nine hundred eighty-one thousand, nine hundred ninety".