675311964991 has 4 divisors (see below), whose sum is σ = 675364356072. Its totient is φ = 675259573912.

The previous prime is 675311964967. The next prime is 675311965001. The reversal of 675311964991 is 199469113576.

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

It is a cyclic number.

It is not a de Polignac number, because 675311964991 - 2⁷ = 675311964863 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 (675311964191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26176201 + ... + 26201986.

It is an arithmetic number, because the mean of its divisors is an integer number (168841089018).

Almost surely, 2^675311964991 is an apocalyptic number.

675311964991 is a deficient number, since it is larger than the sum of its proper divisors (52391081).

675311964991 is a wasteful number, since it uses less digits than its factorization.

675311964991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52391080.

The product of its digits is 11022480, while the sum is 61.

The spelling of 675311964991 in words is "six hundred seventy-five billion, three hundred eleven million, nine hundred sixty-four thousand, nine hundred ninety-one".