675621137773 has 8 divisors (see below), whose sum is σ = 716015686392. Its totient is φ = 635299047936.

The previous prime is 675621137753. The next prime is 675621137791. The reversal of 675621137773 is 377731126576.

It can be written as a sum of positive squares in 4 ways, for example, as 65967812964 + 609653324809 = 256842^2 + 780803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-675621137773 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 (675621137753) 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, 18095490 + ... + 18132787.

It is an arithmetic number, because the mean of its divisors is an integer number (89501960799).

Almost surely, 2^675621137773 is an apocalyptic number.

It is an amenable number.

675621137773 is a deficient number, since it is larger than the sum of its proper divisors (40394548619).

675621137773 is a wasteful number, since it uses less digits than its factorization.

675621137773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36229391.

The product of its digits is 7779240, while the sum is 55.

The spelling of 675621137773 in words is "six hundred seventy-five billion, six hundred twenty-one million, one hundred thirty-seven thousand, seven hundred seventy-three".