42064042402 has 4 divisors (see below), whose sum is σ = 63096063606. Its totient is φ = 21032021200.

The previous prime is 42064042399. The next prime is 42064042403. The reversal of 42064042402 is 20424046024.

42064042402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 31183674921 + 10880367481 = 176589^2 + 104309^2 .

It is not an unprimeable number, because it can be changed into a prime (42064042403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516010599 + ... + 10516010602.

Almost surely, 2^42064042402 is an apocalyptic number.

42064042402 is a deficient number, since it is larger than the sum of its proper divisors (21032021204).

42064042402 is a wasteful number, since it uses less digits than its factorization.

42064042402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21032021203.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 42064042402 its reverse (20424046024), we get a palindrome (62488088426).

The spelling of 42064042402 in words is "forty-two billion, sixty-four million, forty-two thousand, four hundred two".