493386671111481 has 81 divisors (see below), whose sum is σ = 841635343712709. Its totient is φ = 277709659820208.

The previous prime is 493386671111471. The next prime is 493386671111489. The reversal of 493386671111481 is 184111176683394.

The square root of 493386671111481 is 22212309.

It is a perfect power (a square), and thus also a powerful number.

493386671111481 is a `hidden beast` number, since 4 + 9 + 3 + 3 + 86 + 6 + 71 + 1 + 1 + 1 + 481 = 666.

It is not a de Polignac number, because 493386671111481 - 2⁷ = 493386671111353 is a prime.

It is a super-2 number, since 2×493386671111481² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (493386671111489) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 31252710870 + ... + 31252726656.

Almost surely, 2^{493386671111481} is an apocalyptic number.

493386671111481 is the 22212309-th square number.

493386671111481 is the 11106155-th centered octagonal number.

It is an amenable number.

493386671111481 is a deficient number, since it is larger than the sum of its proper divisors (348248672601228).

493386671111481 is an frugal number, since it uses more digits than its factorization.

493386671111481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31728 (or 15864 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 493386671111481 in words is "four hundred ninety-three trillion, three hundred eighty-six billion, six hundred seventy-one million, one hundred eleven thousand, four hundred eighty-one".