1928288854913 has 2 divisors, whose sum is σ = 1928288854914. Its totient is φ = 1928288854912.

The previous prime is 1928288854861. The next prime is 1928288854939. The reversal of 1928288854913 is 3194588828291.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1890768002704 + 37520852209 = 1375052^2 + 193703^2 .

It is a cyclic number.

It is not a de Polignac number, because 1928288854913 - 2¹⁰ = 1928288853889 is a prime.

It is not a weakly prime, because it can be changed into another prime (1928288854993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964144427456 + 964144427457.

It is an arithmetic number, because the mean of its divisors is an integer number (964144427457).

Almost surely, 2^{1928288854913} is an apocalyptic number.

It is an amenable number.

1928288854913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928288854913 is an equidigital number, since it uses as much as digits as its factorization.

1928288854913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 79626240, while the sum is 68.

The spelling of 1928288854913 in words is "one trillion, nine hundred twenty-eight billion, two hundred eighty-eight million, eight hundred fifty-four thousand, nine hundred thirteen".