64121050412 has 12 divisors (see below), whose sum is σ = 113204864136. Its totient is φ = 31776803520.

The previous prime is 64121050403. The next prime is 64121050439. The reversal of 64121050412 is 21405012146.

It is a super-2 number, since 2×64121050412² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70929914 + ... + 70930817.

It is an arithmetic number, because the mean of its divisors is an integer number (9433738678).

Almost surely, 2^64121050412 is an apocalyptic number.

It is an amenable number.

64121050412 is a deficient number, since it is larger than the sum of its proper divisors (49083813724).

64121050412 is a wasteful number, since it uses less digits than its factorization.

64121050412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141860848 (or 141860846 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 64121050412 its reverse (21405012146), we get a palindrome (85526062558).

The spelling of 64121050412 in words is "sixty-four billion, one hundred twenty-one million, fifty thousand, four hundred twelve".