6373493381 has 2 divisors, whose sum is σ = 6373493382. Its totient is φ = 6373493380.

The previous prime is 6373493363. The next prime is 6373493479. The reversal of 6373493381 is 1833943736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5915148100 + 458345281 = 76910^2 + 21409^2 .

It is a cyclic number.

It is not a de Polignac number, because 6373493381 - 2²² = 6369299077 is a prime.

It is a super-2 number, since 2×6373493381² = 81242835755301622322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6373493311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3186746690 + 3186746691.

It is an arithmetic number, because the mean of its divisors is an integer number (3186746691).

Almost surely, 2^6373493381 is an apocalyptic number.

It is an amenable number.

6373493381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6373493381 is an equidigital number, since it uses as much as digits as its factorization.

6373493381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 47.

The square root of 6373493381 is about 79834.1617417005. The cubic root of 6373493381 is about 1854.0688027781.

The spelling of 6373493381 in words is "six billion, three hundred seventy-three million, four hundred ninety-three thousand, three hundred eighty-one".