814397214381 has 16 divisors (see below), whose sum is σ = 1171430403264. Its totient is φ = 501352926464.

The previous prime is 814397214359. The next prime is 814397214409. The reversal of 814397214381 is 183412793418.

It is a cyclic number.

It is not a de Polignac number, because 814397214381 - 2⁵ = 814397214349 is a prime.

It is a super-2 number, since 2×814397214381² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814397214481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150644211 + ... + 150649616.

It is an arithmetic number, because the mean of its divisors is an integer number (73214400204).

Almost surely, 2^814397214381 is an apocalyptic number.

It is an amenable number.

814397214381 is a deficient number, since it is larger than the sum of its proper divisors (357033188883).

814397214381 is a wasteful number, since it uses less digits than its factorization.

814397214381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301293900.

The product of its digits is 1161216, while the sum is 51.

The spelling of 814397214381 in words is "eight hundred fourteen billion, three hundred ninety-seven million, two hundred fourteen thousand, three hundred eighty-one".