675825510781 has 8 divisors (see below), whose sum is σ = 679583923928. Its totient is φ = 672067368000.

The previous prime is 675825510769. The next prime is 675825510793. The reversal of 675825510781 is 187015528576.

It is an interprime number because it is at equal distance from previous prime (675825510769) and next prime (675825510793).

It can be written as a sum of positive squares in 4 ways, for example, as 140125943556 + 535699567225 = 374334^2 + 731915^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 675825510781 - 2⁷ = 675825510653 is a prime.

It is a super-2 number, since 2×675825510781² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (675825510721) 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, 6978511 + ... + 7074691.

It is an arithmetic number, because the mean of its divisors is an integer number (84947990491).

Almost surely, 2^675825510781 is an apocalyptic number.

It is an amenable number.

675825510781 is a deficient number, since it is larger than the sum of its proper divisors (3758413147).

675825510781 is a wasteful number, since it uses less digits than its factorization.

675825510781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135183.

The product of its (nonzero) digits is 4704000, while the sum is 55.

The spelling of 675825510781 in words is "six hundred seventy-five billion, eight hundred twenty-five million, five hundred ten thousand, seven hundred eighty-one".