1021427107485 has 16 divisors (see below), whose sum is σ = 1636873376640. Its totient is φ = 543897789120.

The previous prime is 1021427107469. The next prime is 1021427107501. The reversal of 1021427107485 is 5847017241201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1021427107469) and next prime (1021427107501).

It is not a de Polignac number, because 1021427107485 - 2⁴ = 1021427107469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53948650 + ... + 53967579.

It is an arithmetic number, because the mean of its divisors is an integer number (102304586040).

Almost surely, 2^{1021427107485} is an apocalyptic number.

1021427107485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1021427107485 is a deficient number, since it is larger than the sum of its proper divisors (615446269155).

1021427107485 is a wasteful number, since it uses less digits than its factorization.

1021427107485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107916868.

The product of its (nonzero) digits is 125440, while the sum is 42.

The spelling of 1021427107485 in words is "one trillion, twenty-one billion, four hundred twenty-seven million, one hundred seven thousand, four hundred eighty-five".