65012421042 has 40 divisors (see below), whose sum is σ = 147727780992. Its totient is φ = 21365580600.

The previous prime is 65012421007. The next prime is 65012421079. The reversal of 65012421042 is 24012421056.

65012421042 is a `hidden beast` number, since 650 + 1 + 2 + 4 + 2 + 1 + 0 + 4 + 2 = 666.

It is a super-2 number, since 2×65012421042² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 65012420997 and 65012421015.

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 19 ways as a sum of consecutive naturals, for example, 2814634 + ... + 2837637.

Almost surely, 2^65012421042 is an apocalyptic number.

65012421042 is an abundant number, since it is smaller than the sum of its proper divisors (82715359950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65012421042 is a wasteful number, since it uses less digits than its factorization.

65012421042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5652356 (or 5652347 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 65012421042 its reverse (24012421056), we get a palindrome (89024842098).

The spelling of 65012421042 in words is "sixty-five billion, twelve million, four hundred twenty-one thousand, forty-two".