214680357981 has 12 divisors (see below), whose sum is σ = 311329287360. Its totient is φ = 142550037000.

The previous prime is 214680357953. The next prime is 214680358027. The reversal of 214680357981 is 189753086412.

214680357981 is a `hidden beast` number, since 2 + 1 + 4 + 68 + 0 + 3 + 579 + 8 + 1 = 666.

It is not a de Polignac number, because 214680357981 - 2¹⁴ = 214680341597 is a prime.

It is a super-2 number, since 2×214680357981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214680307981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47514421 + ... + 47518938.

It is an arithmetic number, because the mean of its divisors is an integer number (25944107280).

It is a 1-persistent number, because it is pandigital, but 2⋅214680357981 = 429360715962 is not.

Almost surely, 2^214680357981 is an apocalyptic number.

It is an amenable number.

214680357981 is a deficient number, since it is larger than the sum of its proper divisors (96648929379).

214680357981 is a wasteful number, since it uses less digits than its factorization.

214680357981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95033616 (or 95033613 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 214680357981 in words is "two hundred fourteen billion, six hundred eighty million, three hundred fifty-seven thousand, nine hundred eighty-one".