64936401468 has 48 divisors (see below), whose sum is σ = 157954621440. Its totient is φ = 20739816000.

The previous prime is 64936401443. The next prime is 64936401473. The reversal of 64936401468 is 86410463946.

It is a super-2 number, since 2×64936401468² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64936401468.

It is a congruent number.

It is an unprimeable number.

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, 826588 + ... + 901731.

It is an arithmetic number, because the mean of its divisors is an integer number (3290721280).

Almost surely, 2^64936401468 is an apocalyptic number.

It is an amenable number.

64936401468 is an abundant number, since it is smaller than the sum of its proper divisors (93018219972).

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

64936401468 is a wasteful number, since it uses less digits than its factorization.

64936401468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728458 (or 1728456 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 64936401468 in words is "sixty-four billion, nine hundred thirty-six million, four hundred one thousand, four hundred sixty-eight".