671327531426 has 16 divisors (see below), whose sum is σ = 1012907592000. Its totient is φ = 333692033808.

The previous prime is 671327531423. The next prime is 671327531437. The reversal of 671327531426 is 624135723176.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (671327531423) 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 in 7 ways as a sum of consecutive naturals, for example, 3823595 + ... + 3995313.

It is an arithmetic number, because the mean of its divisors is an integer number (63306724500).

Almost surely, 2^671327531426 is an apocalyptic number.

671327531426 is a deficient number, since it is larger than the sum of its proper divisors (341580060574).

671327531426 is a wasteful number, since it uses less digits than its factorization.

671327531426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183193.

The product of its digits is 1270080, while the sum is 47.

The spelling of 671327531426 in words is "six hundred seventy-one billion, three hundred twenty-seven million, five hundred thirty-one thousand, four hundred twenty-six".