64204260842 has 16 divisors (see below), whose sum is σ = 102297277512. Its totient is φ = 30117235200.

The previous prime is 64204260829. The next prime is 64204260871. The reversal of 64204260842 is 24806240246.

It can be written as a sum of positive squares in 4 ways, for example, as 44238288241 + 19965972601 = 210329^2 + 141301^2 .

It is a super-2 number, since 2×64204260842² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64204260796 and 64204260805.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3005909 + ... + 3027192.

Almost surely, 2^64204260842 is an apocalyptic number.

64204260842 is a deficient number, since it is larger than the sum of its proper divisors (38093016670).

64204260842 is a wasteful number, since it uses less digits than its factorization.

64204260842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6033433.

The product of its (nonzero) digits is 147456, while the sum is 38.

The spelling of 64204260842 in words is "sixty-four billion, two hundred four million, two hundred sixty thousand, eight hundred forty-two".