674663893997 has 2 divisors, whose sum is σ = 674663893998. Its totient is φ = 674663893996.

The previous prime is 674663893973. The next prime is 674663894059. The reversal of 674663893997 is 799398366476.

674663893997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617629379236 + 57034514761 = 785894^2 + 238819^2 .

It is a cyclic number.

It is not a de Polignac number, because 674663893997 - 2⁶ = 674663893933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674663893697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337331946998 + 337331946999.

It is an arithmetic number, because the mean of its divisors is an integer number (337331946999).

Almost surely, 2^674663893997 is an apocalyptic number.

It is an amenable number.

674663893997 is a deficient number, since it is larger than the sum of its proper divisors (1).

674663893997 is an equidigital number, since it uses as much as digits as its factorization.

674663893997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2222131968, while the sum is 77.

The spelling of 674663893997 in words is "six hundred seventy-four billion, six hundred sixty-three million, eight hundred ninety-three thousand, nine hundred ninety-seven".