64221274374 has 32 divisors (see below), whose sum is σ = 138564004320. Its totient is φ = 19767700992.

The previous prime is 64221274373. The next prime is 64221274399. The reversal of 64221274374 is 47347212246.

It is a super-3 number, since 3×64221274374³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64221274373) 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, 5934409 + ... + 5945220.

It is an arithmetic number, because the mean of its divisors is an integer number (4330125135).

Almost surely, 2^64221274374 is an apocalyptic number.

64221274374 is an abundant number, since it is smaller than the sum of its proper divisors (74342729946).

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

64221274374 is a wasteful number, since it uses less digits than its factorization.

64221274374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11879704.

The product of its digits is 451584, while the sum is 42.

The spelling of 64221274374 in words is "sixty-four billion, two hundred twenty-one million, two hundred seventy-four thousand, three hundred seventy-four".