909249999999 has 32 divisors (see below), whose sum is σ = 1326281139456. Its totient is φ = 549504933120.

The previous prime is 909249999979. The next prime is 909250000019. The reversal of 909249999999 is 999999942909.

It is an interprime number because it is at equal distance from previous prime (909249999979) and next prime (909250000019).

It is not a de Polignac number, because 909249999999 - 2⁵ = 909249999967 is a prime.

909249999999 is a modest number, since divided by 999999 gives 909249 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (909249999919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53142204 + ... + 53159310.

It is an arithmetic number, because the mean of its divisors is an integer number (41446285608).

Almost surely, 2^909249999999 is an apocalyptic number.

909249999999 is a deficient number, since it is larger than the sum of its proper divisors (417031139457).

909249999999 is a wasteful number, since it uses less digits than its factorization.

909249999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21575.

The product of its (nonzero) digits is 3099363912, while the sum is 87.

The spelling of 909249999999 in words is "nine hundred nine billion, two hundred forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".