1726642061 has 8 divisors (see below), whose sum is σ = 1825813248. Its totient is φ = 1630188000.

The previous prime is 1726642051. The next prime is 1726642067. The reversal of 1726642061 is 1602466271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1726642061 - 2⁶ = 1726641997 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 (1726642067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677975 + ... + 680516.

It is an arithmetic number, because the mean of its divisors is an integer number (228226656).

Almost surely, 2^1726642061 is an apocalyptic number.

It is an amenable number.

1726642061 is a deficient number, since it is larger than the sum of its proper divisors (99171187).

1726642061 is a wasteful number, since it uses less digits than its factorization.

1726642061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1358563.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1726642061 is about 41552.8827038510. The cubic root of 1726642061 is about 1199.6855798924.

The spelling of 1726642061 in words is "one billion, seven hundred twenty-six million, six hundred forty-two thousand, sixty-one".