2628763788 has 48 divisors (see below), whose sum is σ = 7422395904. Its totient is φ = 706894080.

The previous prime is 2628763723. The next prime is 2628763793. The reversal of 2628763788 is 8873678262.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919008 + ... + 921863.

It is an arithmetic number, because the mean of its divisors is an integer number (154633248).

Almost surely, 2^2628763788 is an apocalyptic number.

2628763788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2628763788 is an abundant number, since it is smaller than the sum of its proper divisors (4793632116).

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

2628763788 is a wasteful number, since it uses less digits than its factorization.

2628763788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840902 (or 1840900 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 57.

The square root of 2628763788 is about 51271.4714826871. The cubic root of 2628763788 is about 1380.1210752834.

The spelling of 2628763788 in words is "two billion, six hundred twenty-eight million, seven hundred sixty-three thousand, seven hundred eighty-eight".