1720834056494 has 16 divisors (see below), whose sum is σ = 2950072815456. Its totient is φ = 737482416000.

The previous prime is 1720834056493. The next prime is 1720834056523. The reversal of 1720834056494 is 4946504380271.

It is a super-2 number, since 2×1720834056494² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720834056493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885047 + ... + 2055474.

It is an arithmetic number, because the mean of its divisors is an integer number (184379550966).

It is a 1-persistent number, because it is pandigital, but 2⋅1720834056494 = 3441668112988 is not.

Almost surely, 2^{1720834056494} is an apocalyptic number.

1720834056494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1720834056494 is a deficient number, since it is larger than the sum of its proper divisors (1229238758962).

1720834056494 is a wasteful number, since it uses less digits than its factorization.

1720834056494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982331.

The product of its (nonzero) digits is 5806080, while the sum is 53.

The spelling of 1720834056494 in words is "one trillion, seven hundred twenty billion, eight hundred thirty-four million, fifty-six thousand, four hundred ninety-four".