1488816891937 has 2 divisors, whose sum is σ = 1488816891938. Its totient is φ = 1488816891936.

The previous prime is 1488816891923. The next prime is 1488816891959. The reversal of 1488816891937 is 7391986188841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 772493335056 + 716323556881 = 878916^2 + 846359^2 .

It is a cyclic number.

It is not a de Polignac number, because 1488816891937 - 2³⁹ = 939061078049 is a prime.

It is a super-2 number, since 2×1488816891937² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1488816891937.

It is not a weakly prime, because it can be changed into another prime (1488816891967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 744408445968 + 744408445969.

It is an arithmetic number, because the mean of its divisors is an integer number (744408445969).

Almost surely, 2^{1488816891937} is an apocalyptic number.

It is an amenable number.

1488816891937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1488816891937 is an equidigital number, since it uses as much as digits as its factorization.

1488816891937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 167215104, while the sum is 73.

The spelling of 1488816891937 in words is "one trillion, four hundred eighty-eight billion, eight hundred sixteen million, eight hundred ninety-one thousand, nine hundred thirty-seven".