1928773513 has 2 divisors, whose sum is σ = 1928773514. Its totient is φ = 1928773512.

The previous prime is 1928773507. The next prime is 1928773529. The reversal of 1928773513 is 3153778291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1849688064 + 79085449 = 43008^2 + 8893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1928773513 is a prime.

It is a super-2 number, since 2×1928773513² = 7440334528900722338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1923773513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964386756 + 964386757.

It is an arithmetic number, because the mean of its divisors is an integer number (964386757).

Almost surely, 2^1928773513 is an apocalyptic number.

It is an amenable number.

1928773513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928773513 is an equidigital number, since it uses as much as digits as its factorization.

1928773513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The square root of 1928773513 is about 43917.8040548477. The cubic root of 1928773513 is about 1244.7832750178.

The spelling of 1928773513 in words is "one billion, nine hundred twenty-eight million, seven hundred seventy-three thousand, five hundred thirteen".