674177408381 has 2 divisors, whose sum is σ = 674177408382. Its totient is φ = 674177408380.

The previous prime is 674177408269. The next prime is 674177408431. The reversal of 674177408381 is 183804771476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 673852183225 + 325225156 = 820885^2 + 18034^2 .

It is a cyclic number.

It is not a de Polignac number, because 674177408381 - 2¹⁰ = 674177407357 is a prime.

It is a super-2 number, since 2×674177408381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674177488381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337088704190 + 337088704191.

It is an arithmetic number, because the mean of its divisors is an integer number (337088704191).

Almost surely, 2^674177408381 is an apocalyptic number.

It is an amenable number.

674177408381 is a deficient number, since it is larger than the sum of its proper divisors (1).

674177408381 is an equidigital number, since it uses as much as digits as its factorization.

674177408381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6322176, while the sum is 56.

The spelling of 674177408381 in words is "six hundred seventy-four billion, one hundred seventy-seven million, four hundred eight thousand, three hundred eighty-one".