64138937250462 has 32 divisors (see below), whose sum is σ = 138322740165120. Its totient is φ = 19760391449280.

The previous prime is 64138937250439. The next prime is 64138937250463. The reversal of 64138937250462 is 26405273983146.

It is a super-3 number, since 3×64138937250462³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 64138937250396 and 64138937250405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64138937250463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6861242358 + ... + 6861251705.

It is an arithmetic number, because the mean of its divisors is an integer number (4322585630160).

It is a 1-persistent number, because it is pandigital, but 2⋅64138937250462 = 128277874500924 is not.

Almost surely, 2^{64138937250462} is an apocalyptic number.

64138937250462 is an abundant number, since it is smaller than the sum of its proper divisors (74183802914658).

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

64138937250462 is a wasteful number, since it uses less digits than its factorization.

64138937250462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13722494128.

The product of its (nonzero) digits is 52254720, while the sum is 60.

The spelling of 64138937250462 in words is "sixty-four trillion, one hundred thirty-eight billion, nine hundred thirty-seven million, two hundred fifty thousand, four hundred sixty-two".