1720746676425 has 24 divisors (see below), whose sum is σ = 3251391816256. Its totient is φ = 786627051840.

The previous prime is 1720746676417. The next prime is 1720746676457. The reversal of 1720746676425 is 5246766470271.

It is not a de Polignac number, because 1720746676425 - 2³ = 1720746676417 is a prime.

It is a super-3 number, since 3×1720746676425³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1638805834 + ... + 1638806883.

Almost surely, 2^{1720746676425} is an apocalyptic number.

1720746676425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1720746676425 is a deficient number, since it is larger than the sum of its proper divisors (1530645139831).

1720746676425 is a wasteful number, since it uses less digits than its factorization.

1720746676425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3277612737 (or 3277612732 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 57.

The spelling of 1720746676425 in words is "one trillion, seven hundred twenty billion, seven hundred forty-six million, six hundred seventy-six thousand, four hundred twenty-five".