14064051981 has 80 divisors (see below), whose sum is σ = 22714720704. Its totient is φ = 7733601792.

The previous prime is 14064051979. The next prime is 14064052021. The reversal of 14064051981 is 18915046041.

It is not a de Polignac number, because 14064051981 - 2¹ = 14064051979 is a prime.

It is a super-2 number, since 2×14064051981² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14064051931) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 30115510 + ... + 30115976.

Almost surely, 2^14064051981 is an apocalyptic number.

It is an amenable number.

14064051981 is a deficient number, since it is larger than the sum of its proper divisors (8650668723).

14064051981 is an equidigital number, since it uses as much as digits as its factorization.

14064051981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The spelling of 14064051981 in words is "fourteen billion, sixty-four million, fifty-one thousand, nine hundred eighty-one".