1742478681 has 8 divisors (see below), whose sum is σ = 2325927744. Its totient is φ = 1160341040.

The previous prime is 1742478679. The next prime is 1742478719. The reversal of 1742478681 is 1868742471.

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 1742478681 - 2¹ = 1742478679 is a prime.

It is a super-2 number, since 2×1742478681² = 6072463907478999522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1742478681.

It is not an unprimeable number, because it can be changed into a prime (1742478641) 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, 324750 + ... + 330071.

It is an arithmetic number, because the mean of its divisors is an integer number (290740968).

Almost surely, 2^1742478681 is an apocalyptic number.

It is an amenable number.

1742478681 is a deficient number, since it is larger than the sum of its proper divisors (583449063).

1742478681 is an equidigital number, since it uses as much as digits as its factorization.

1742478681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655711.

The product of its digits is 602112, while the sum is 48.

The square root of 1742478681 is about 41743.0075701308. The cubic root of 1742478681 is about 1203.3422291392.

The spelling of 1742478681 in words is "one billion, seven hundred forty-two million, four hundred seventy-eight thousand, six hundred eighty-one".