42723134628701 has 2 divisors, whose sum is σ = 42723134628702. Its totient is φ = 42723134628700.

The previous prime is 42723134628679. The next prime is 42723134628737. The reversal of 42723134628701 is 10782643132724.

It is a happy number.

42723134628701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38654446252900 + 4068688375801 = 6217270^2 + 2017099^2 .

It is a cyclic number.

It is not a de Polignac number, because 42723134628701 - 2³⁰ = 42722060886877 is a prime.

It is a super-2 number, since 2×42723134628701² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42723134628701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42723134625701) 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 as a sum of consecutive naturals, namely, 21361567314350 + 21361567314351.

It is an arithmetic number, because the mean of its divisors is an integer number (21361567314351).

Almost surely, 2^{42723134628701} is an apocalyptic number.

It is an amenable number.

42723134628701 is a deficient number, since it is larger than the sum of its proper divisors (1).

42723134628701 is an equidigital number, since it uses as much as digits as its factorization.

42723134628701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 42723134628701 in words is "forty-two trillion, seven hundred twenty-three billion, one hundred thirty-four million, six hundred twenty-eight thousand, seven hundred one".