62638438709 has 16 divisors (see below), whose sum is σ = 78100895616. Its totient is φ = 48805286400.

The previous prime is 62638438703. The next prime is 62638438729. The reversal of 62638438709 is 90783483626.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 62638438709 - 2¹² = 62638434613 is a prime.

It is a super-2 number, since 2×62638438709² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62638438703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1288289 + ... + 1336025.

It is an arithmetic number, because the mean of its divisors is an integer number (4881305976).

Almost surely, 2^62638438709 is an apocalyptic number.

It is an amenable number.

62638438709 is a deficient number, since it is larger than the sum of its proper divisors (15462456907).

62638438709 is a wasteful number, since it uses less digits than its factorization.

62638438709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64796.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 62638438709 in words is "sixty-two billion, six hundred thirty-eight million, four hundred thirty-eight thousand, seven hundred nine".