1742120017427 has 32 divisors (see below), whose sum is σ = 1899214141440. Its totient is φ = 1591926048000.

The previous prime is 1742120017423. The next prime is 1742120017439. The reversal of 1742120017427 is 7247100212471.

It is a cyclic number.

It is not a de Polignac number, because 1742120017427 - 2² = 1742120017423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1742120017423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280486352 + ... + 280492562.

It is an arithmetic number, because the mean of its divisors is an integer number (59350441920).

Almost surely, 2^{1742120017427} is an apocalyptic number.

1742120017427 is a deficient number, since it is larger than the sum of its proper divisors (157094124013).

1742120017427 is a wasteful number, since it uses less digits than its factorization.

1742120017427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755.

The product of its (nonzero) digits is 43904, while the sum is 38.

Adding to 1742120017427 its reverse (7247100212471), we get a palindrome (8989220229898).

The spelling of 1742120017427 in words is "one trillion, seven hundred forty-two billion, one hundred twenty million, seventeen thousand, four hundred twenty-seven".