1671048537911 has 4 divisors (see below), whose sum is σ = 1743702822192. Its totient is φ = 1598394253632.

The previous prime is 1671048537839. The next prime is 1671048537913. The reversal of 1671048537911 is 1197358401761.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1671048537911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1671048537913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36327142106 + ... + 36327142151.

It is an arithmetic number, because the mean of its divisors is an integer number (435925705548).

Almost surely, 2^{1671048537911} is an apocalyptic number.

1671048537911 is a deficient number, since it is larger than the sum of its proper divisors (72654284281).

1671048537911 is an equidigital number, since it uses as much as digits as its factorization.

1671048537911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72654284280.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The spelling of 1671048537911 in words is "one trillion, six hundred seventy-one billion, forty-eight million, five hundred thirty-seven thousand, nine hundred eleven".