64126931140605 has 64 divisors (see below), whose sum is σ = 106398681661440. Its totient is φ = 32945984236800.

The previous prime is 64126931140499. The next prime is 64126931140673. The reversal of 64126931140605 is 50604113962146.

It is a happy number.

It is not a de Polignac number, because 64126931140605 - 2¹² = 64126931136509 is a prime.

It is a super-2 number, since 2×64126931140605² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1255617220 + ... + 1255668290.

It is an arithmetic number, because the mean of its divisors is an integer number (1662479400960).

Almost surely, 2^{64126931140605} is an apocalyptic number.

It is an amenable number.

64126931140605 is a deficient number, since it is larger than the sum of its proper divisors (42271750520835).

64126931140605 is a wasteful number, since it uses less digits than its factorization.

64126931140605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63442.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 64126931140605 in words is "sixty-four trillion, one hundred twenty-six billion, nine hundred thirty-one million, one hundred forty thousand, six hundred five".