214951721064 has 64 divisors (see below), whose sum is σ = 552445850880. Its totient is φ = 69654144000.

The previous prime is 214951721057. The next prime is 214951721087. The reversal of 214951721064 is 460127159412.

It is a super-2 number, since 2×214951721064² (a number of 23 digits) contains 22 as substring.

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, 112192 + ... + 665199.

It is an arithmetic number, because the mean of its divisors is an integer number (8631966420).

Almost surely, 2^214951721064 is an apocalyptic number.

214951721064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

214951721064 is an abundant number, since it is smaller than the sum of its proper divisors (337494129816).

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

214951721064 is a wasteful number, since it uses less digits than its factorization.

214951721064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777722 (or 777718 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 214951721064 in words is "two hundred fourteen billion, nine hundred fifty-one million, seven hundred twenty-one thousand, sixty-four".