1488426840121 has 15 divisors (see below), whose sum is σ = 1612681461321. Its totient is φ = 1373742146088.

The previous prime is 1488426840077. The next prime is 1488426840139. The reversal of 1488426840121 is 1210486248841.

The square root of 1488426840121 is 1220011.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 737985801721 + 750441038400 = 859061^2 + 866280^2 .

It is not a de Polignac number, because 1488426840121 - 2¹³ = 1488426831929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1488426840151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 206178250 + ... + 206185468.

Almost surely, 2^{1488426840121} is an apocalyptic number.

1488426840121 is the 1220011-st square number.

1488426840121 is the 610006-th centered octagonal number.

It is an amenable number.

1488426840121 is a deficient number, since it is larger than the sum of its proper divisors (124254621200).

1488426840121 is an frugal number, since it uses more digits than its factorization.

1488426840121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14490 (or 7232 counting only the distinct ones).

The product of its (nonzero) digits is 786432, while the sum is 49.

Multiplying 1488426840121 by its sum of digits (49), we get a square (72932915165929 = 8540077²).

The spelling of 1488426840121 in words is "one trillion, four hundred eighty-eight billion, four hundred twenty-six million, eight hundred forty thousand, one hundred twenty-one".