12400989699 has 8 divisors (see below), whose sum is σ = 18896746240. Its totient is φ = 7086279816.

The previous prime is 12400989697. The next prime is 12400989719. The reversal of 12400989699 is 99698900421.

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

It is not a de Polignac number, because 12400989699 - 2¹ = 12400989697 is a prime.

It is a super-2 number, since 2×12400989699² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400989691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295261639 + ... + 295261680.

It is an arithmetic number, because the mean of its divisors is an integer number (2362093280).

Almost surely, 2^12400989699 is an apocalyptic number.

12400989699 is a deficient number, since it is larger than the sum of its proper divisors (6495756541).

12400989699 is an equidigital number, since it uses as much as digits as its factorization.

12400989699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590523329.

The product of its (nonzero) digits is 2519424, while the sum is 57.

The spelling of 12400989699 in words is "twelve billion, four hundred million, nine hundred eighty-nine thousand, six hundred ninety-nine".