1000909191010 has 16 divisors (see below), whose sum is σ = 1801857452472. Its totient is φ = 400314585600.

The previous prime is 1000909190993. The next prime is 1000909191011. The reversal of 1000909191010 is 101919090001.

1000909191010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 402627051841 + 598282139169 = 634529^2 + 773487^2 .

It is not an unprimeable number, because it can be changed into a prime (1000909191011) 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, 6050661 + ... + 6213880.

Almost surely, 2^{1000909191010} is an apocalyptic number.

1000909191010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000909191010 is a deficient number, since it is larger than the sum of its proper divisors (800948261462).

1000909191010 is a wasteful number, since it uses less digits than its factorization.

1000909191010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12272709.

The product of its (nonzero) digits is 729, while the sum is 31.

It can be divided in two parts, 10009091 and 91010, that added together give a palindrome (10100101).

The spelling of 1000909191010 in words is "one trillion, nine hundred nine million, one hundred ninety-one thousand, ten".