1720536852020 has 36 divisors (see below), whose sum is σ = 4203025740900. Its totient is φ = 589898348928.

The previous prime is 1720536851977. The next prime is 1720536852031. The reversal of 1720536852020 is 202586350271.

It can be written as a sum of positive squares in 2 ways, for example, as 518207057956 + 1202329794064 = 719866^2 + 1096508^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 877823945 + ... + 877825904.

It is an arithmetic number, because the mean of its divisors is an integer number (116750715025).

Almost surely, 2^{1720536852020} is an apocalyptic number.

1720536852020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1720536852020 is an abundant number, since it is smaller than the sum of its proper divisors (2482488888880).

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

1720536852020 is a wasteful number, since it uses less digits than its factorization.

1720536852020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1755649872 (or 1755649863 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 1720536852020 in words is "one trillion, seven hundred twenty billion, five hundred thirty-six million, eight hundred fifty-two thousand, twenty".