2628776890 has 8 divisors (see below), whose sum is σ = 4731798420. Its totient is φ = 1051510752.

The previous prime is 2628776797. The next prime is 2628776933. The reversal of 2628776890 is 986778262.

It can be written as a sum of positive squares in 2 ways, for example, as 2627895169 + 881721 = 51263^2 + 939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131438835 + ... + 131438854.

Almost surely, 2^2628776890 is an apocalyptic number.

2628776890 is a deficient number, since it is larger than the sum of its proper divisors (2103021530).

2628776890 is a wasteful number, since it uses less digits than its factorization.

2628776890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262877696.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The square root of 2628776890 is about 51271.5992533878. The cubic root of 2628776890 is about 1380.1233681629.

The spelling of 2628776890 in words is "two billion, six hundred twenty-eight million, seven hundred seventy-six thousand, eight hundred ninety".