674498171187456 has 1296 divisors, whose sum is σ = 2376453247709184. Its totient is φ = 169530729984000.

The previous prime is 674498171187439. The next prime is 674498171187481. The reversal of 674498171187456 is 654781171894476.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 48417060811 + ... + 48417074741.

It is an arithmetic number, because the mean of its divisors is an integer number (1833683061504).

Almost surely, 2^{674498171187456} is an apocalyptic number.

674498171187456 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 674498171187456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1188226623854592).

674498171187456 is an abundant number, since it is smaller than the sum of its proper divisors (1701955076521728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674498171187456 is an equidigital number, since it uses as much as digits as its factorization.

674498171187456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14038 (or 13985 counting only the distinct ones).

The product of its digits is 2275983360, while the sum is 78.

The spelling of 674498171187456 in words is "six hundred seventy-four trillion, four hundred ninety-eight billion, one hundred seventy-one million, one hundred eighty-seven thousand, four hundred fifty-six".