1720535020002 has 24 divisors (see below), whose sum is σ = 3727886695884. Its totient is φ = 573502316544.

The previous prime is 1720535019989. The next prime is 1720535020067. The reversal of 1720535020002 is 2000205350271.

It can be written as a sum of positive squares in 2 ways, for example, as 1679561568441 + 40973451561 = 1295979^2 + 202419^2 .

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, 402658 + ... + 1898210.

Almost surely, 2^{1720535020002} is an apocalyptic number.

1720535020002 is an abundant number, since it is smaller than the sum of its proper divisors (2007351675882).

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

1720535020002 is a wasteful number, since it uses less digits than its factorization.

1720535020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1559474 (or 1559471 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The spelling of 1720535020002 in words is "one trillion, seven hundred twenty billion, five hundred thirty-five million, twenty thousand, two".