64892174648922 has 64 divisors (see below), whose sum is σ = 145757639448960. Its totient is φ = 21398006380032.

The previous prime is 64892174648921. The next prime is 64892174649011. The reversal of 64892174648922 is 22984647129846.

64892174648922 is a `hidden beast` number, since 6 + 4 + 8 + 92 + 17 + 46 + 489 + 2 + 2 = 666.

It is a super-3 number, since 3×64892174648922³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (64892174648921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8727528 + ... + 14351100.

It is an arithmetic number, because the mean of its divisors is an integer number (2277463116390).

Almost surely, 2^{64892174648922} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64892174648922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72878819724480).

64892174648922 is an abundant number, since it is smaller than the sum of its proper divisors (80865464800038).

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

64892174648922 is a wasteful number, since it uses less digits than its factorization.

64892174648922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625884 (or 5625878 counting only the distinct ones).

The product of its digits is 668860416, while the sum is 72.

The spelling of 64892174648922 in words is "sixty-four trillion, eight hundred ninety-two billion, one hundred seventy-four million, six hundred forty-eight thousand, nine hundred twenty-two".