91026765006 has 16 divisors (see below), whose sum is σ = 186973896144. Its totient is φ = 29522193984.

The previous prime is 91026765001. The next prime is 91026765017. The reversal of 91026765006 is 60056762019.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91026765001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205015015 + ... + 205015458.

It is an arithmetic number, because the mean of its divisors is an integer number (11685868509).

Almost surely, 2^91026765006 is an apocalyptic number.

91026765006 is an abundant number, since it is smaller than the sum of its proper divisors (95947131138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91026765006 is a wasteful number, since it uses less digits than its factorization.

91026765006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410030515.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 91026765006 in words is "ninety-one billion, twenty-six million, seven hundred sixty-five thousand, six".