671053672353 has 4 divisors (see below), whose sum is σ = 894738229808. Its totient is φ = 447369114900.

The previous prime is 671053672349. The next prime is 671053672391. The reversal of 671053672353 is 353276350176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 671053672353 - 2² = 671053672349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671053672313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111842278723 + ... + 111842278728.

It is an arithmetic number, because the mean of its divisors is an integer number (223684557452).

Almost surely, 2^671053672353 is an apocalyptic number.

It is an amenable number.

671053672353 is a deficient number, since it is larger than the sum of its proper divisors (223684557455).

671053672353 is a wasteful number, since it uses less digits than its factorization.

671053672353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223684557454.

The product of its (nonzero) digits is 2381400, while the sum is 48.

The spelling of 671053672353 in words is "six hundred seventy-one billion, fifty-three million, six hundred seventy-two thousand, three hundred fifty-three".