1720734114357 has 6 divisors (see below), whose sum is σ = 2485504831862. Its totient is φ = 1147156076232.

The previous prime is 1720734114349. The next prime is 1720734114431. The reversal of 1720734114357 is 7534114370271.

1720734114357 is a `hidden beast` number, since 1 + 7 + 207 + 3 + 4 + 1 + 1 + 435 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 947106561636 + 773627552721 = 973194^2 + 879561^2 .

It is not a de Polignac number, because 1720734114357 - 2³ = 1720734114349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720734114257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 95596339678 + ... + 95596339695.

Almost surely, 2^{1720734114357} is an apocalyptic number.

It is an amenable number.

1720734114357 is a deficient number, since it is larger than the sum of its proper divisors (764770717505).

1720734114357 is a wasteful number, since it uses less digits than its factorization.

1720734114357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191192679379 (or 191192679376 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The spelling of 1720734114357 in words is "one trillion, seven hundred twenty billion, seven hundred thirty-four million, one hundred fourteen thousand, three hundred fifty-seven".