42418697764 has 81 divisors (see below), whose sum is σ = 79545675027. Its totient is φ = 19791739968.

The previous prime is 42418697729. The next prime is 42418697771. The reversal of 42418697764 is 46779681424.

It is a happy number.

The square root of 42418697764 is 205958.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2661528100 + 39757169664 = 51590^2 + 199392^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a junction number, because it is equal to n+sod(n) for n = 42418697699 and 42418697708.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 633114859 + ... + 633114925.

Almost surely, 2^42418697764 is an apocalyptic number.

42418697764 is the 205958-th square number.

It is an amenable number.

42418697764 is a deficient number, since it is larger than the sum of its proper divisors (37126977263).

42418697764 is an equidigital number, since it uses as much as digits as its factorization.

42418697764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 151 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 58.

The spelling of 42418697764 in words is "forty-two billion, four hundred eighteen million, six hundred ninety-seven thousand, seven hundred sixty-four".