4021267286464 has 112 divisors (see below), whose sum is σ = 8420414065920. Its totient is φ = 1900116541440.

The previous prime is 4021267286437. The next prime is 4021267286473. The reversal of 4021267286464 is 4646827621204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1392886429 + ... + 1392889315.

Almost surely, 2^{4021267286464} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021267286464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4210207032960).

4021267286464 is an abundant number, since it is smaller than the sum of its proper divisors (4399146779456).

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

4021267286464 is a wasteful number, since it uses less digits than its factorization.

4021267286464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5346 (or 5336 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 52.

The spelling of 4021267286464 in words is "four trillion, twenty-one billion, two hundred sixty-seven million, two hundred eighty-six thousand, four hundred sixty-four".