1720834056434 has 24 divisors (see below), whose sum is σ = 2668652832384. Its totient is φ = 832209105000.

The previous prime is 1720834056433. The next prime is 1720834056439. The reversal of 1720834056434 is 4346504380271.

It is a super-2 number, since 2×1720834056434² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1720834056433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3307559 + ... + 3792309.

It is an arithmetic number, because the mean of its divisors is an integer number (111193868016).

Almost surely, 2^{1720834056434} is an apocalyptic number.

1720834056434 is a deficient number, since it is larger than the sum of its proper divisors (947818775950).

1720834056434 is a wasteful number, since it uses less digits than its factorization.

1720834056434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486662 (or 486631 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 1720834056434 in words is "one trillion, seven hundred twenty billion, eight hundred thirty-four million, fifty-six thousand, four hundred thirty-four".