1021704041085 has 64 divisors (see below), whose sum is σ = 2058761177088. Its totient is φ = 421110192384.

The previous prime is 1021704041077. The next prime is 1021704041089. The reversal of 1021704041085 is 5801404071201.

It is not a de Polignac number, because 1021704041085 - 2³ = 1021704041077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021704041089) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8644807 + ... + 8762196.

It is an arithmetic number, because the mean of its divisors is an integer number (32168143392).

Almost surely, 2^{1021704041085} is an apocalyptic number.

1021704041085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1021704041085 is an abundant number, since it is smaller than the sum of its proper divisors (1037057136003).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021704041085 is a wasteful number, since it uses less digits than its factorization.

1021704041085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17407074.

The product of its (nonzero) digits is 8960, while the sum is 33.

The spelling of 1021704041085 in words is "one trillion, twenty-one billion, seven hundred four million, forty-one thousand, eighty-five".