671136700442 has 16 divisors (see below), whose sum is σ = 1119116285952. Its totient is φ = 299763290160.

The previous prime is 671136700441. The next prime is 671136700457. The reversal of 671136700442 is 244007631176.

It is a self number, because there is not a number n which added to its sum of digits gives 671136700442.

It is not an unprimeable number, because it can be changed into a prime (671136700441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416337098 + ... + 416338709.

It is an arithmetic number, because the mean of its divisors is an integer number (69944767872).

Almost surely, 2^671136700442 is an apocalyptic number.

671136700442 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

671136700442 is a deficient number, since it is larger than the sum of its proper divisors (447979585510).

671136700442 is a wasteful number, since it uses less digits than its factorization.

671136700442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832675853.

The product of its (nonzero) digits is 169344, while the sum is 41.

The spelling of 671136700442 in words is "six hundred seventy-one billion, one hundred thirty-six million, seven hundred thousand, four hundred forty-two".