6927274381 has 2 divisors, whose sum is σ = 6927274382. Its totient is φ = 6927274380.

The previous prime is 6927274331. The next prime is 6927274441. The reversal of 6927274381 is 1834727296.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5246684356 + 1680590025 = 72434^2 + 40995^2 .

It is a cyclic number.

It is not a de Polignac number, because 6927274381 - 2¹⁵ = 6927241613 is a prime.

It is a super-2 number, since 2×6927274381² = 95974260699317866322, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6927274301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3463637190 + 3463637191.

It is an arithmetic number, because the mean of its divisors is an integer number (3463637191).

Almost surely, 2^6927274381 is an apocalyptic number.

It is an amenable number.

6927274381 is a deficient number, since it is larger than the sum of its proper divisors (1).

6927274381 is an equidigital number, since it uses as much as digits as its factorization.

6927274381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 6927274381 is about 83230.2491946288. The cubic root of 6927274381 is about 1906.2833879437.

The spelling of 6927274381 in words is "six billion, nine hundred twenty-seven million, two hundred seventy-four thousand, three hundred eighty-one".