17742131453 has 4 divisors (see below), whose sum is σ = 17742501660. Its totient is φ = 17741761248.

The previous prime is 17742131431. The next prime is 17742131507. The reversal of 17742131453 is 35413124771.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17372030809 + 370100644 = 131803^2 + 19238^2 .

It is a cyclic number.

It is not a de Polignac number, because 17742131453 - 2²² = 17737937149 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 (17742131153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100250 + ... + 213387.

It is an arithmetic number, because the mean of its divisors is an integer number (4435625415).

Almost surely, 2^17742131453 is an apocalyptic number.

It is an amenable number.

17742131453 is a deficient number, since it is larger than the sum of its proper divisors (370207).

17742131453 is an equidigital number, since it uses as much as digits as its factorization.

17742131453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370206.

The product of its digits is 70560, while the sum is 38.

The spelling of 17742131453 in words is "seventeen billion, seven hundred forty-two million, one hundred thirty-one thousand, four hundred fifty-three".