1928648783 has 2 divisors, whose sum is σ = 1928648784. Its totient is φ = 1928648782.

The previous prime is 1928648749. The next prime is 1928648881. The reversal of 1928648783 is 3878468291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1928648783 - 2¹⁰ = 1928647759 is a prime.

It is a super-2 number, since 2×1928648783² = 7439372256334762178, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1928648723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964324391 + 964324392.

It is an arithmetic number, because the mean of its divisors is an integer number (964324392).

Almost surely, 2^1928648783 is an apocalyptic number.

1928648783 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928648783 is an equidigital number, since it uses as much as digits as its factorization.

1928648783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 56.

The square root of 1928648783 is about 43916.3839927652. The cubic root of 1928648783 is about 1244.7564418751.

The spelling of 1928648783 in words is "one billion, nine hundred twenty-eight million, six hundred forty-eight thousand, seven hundred eighty-three".