8261798575990 has 16 divisors (see below), whose sum is σ = 15059480950080. Its totient is φ = 3262887538560.

The previous prime is 8261798575949. The next prime is 8261798576011. The reversal of 8261798575990 is 995758971628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5228985651 + ... + 5228987230.

It is an arithmetic number, because the mean of its divisors is an integer number (941217559380).

Almost surely, 2^{8261798575990} is an apocalyptic number.

8261798575990 is a deficient number, since it is larger than the sum of its proper divisors (6797682374090).

8261798575990 is a wasteful number, since it uses less digits than its factorization.

8261798575990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10457972967.

The product of its (nonzero) digits is 685843200, while the sum is 76.

The spelling of 8261798575990 in words is "eight trillion, two hundred sixty-one billion, seven hundred ninety-eight million, five hundred seventy-five thousand, nine hundred ninety".