1928503937797 has 2 divisors, whose sum is σ = 1928503937798. Its totient is φ = 1928503937796.

The previous prime is 1928503937761. The next prime is 1928503937863. The reversal of 1928503937797 is 7977393058291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1242134769121 + 686369168676 = 1114511^2 + 828474^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1928503937797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1928503937597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 964251968898 + 964251968899.

It is an arithmetic number, because the mean of its divisors is an integer number (964251968899).

Almost surely, 2^{1928503937797} is an apocalyptic number.

It is an amenable number.

1928503937797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1928503937797 is an equidigital number, since it uses as much as digits as its factorization.

1928503937797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180033840, while the sum is 70.

The spelling of 1928503937797 in words is "one trillion, nine hundred twenty-eight billion, five hundred three million, nine hundred thirty-seven thousand, seven hundred ninety-seven".