1197126529408 has 64 divisors (see below), whose sum is σ = 2473355955600. Its totient is φ = 576466716672.

The previous prime is 1197126529393. The next prime is 1197126529439. The reversal of 1197126529408 is 8049256217911.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1197126529408² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067491 + ... + 1879837.

Almost surely, 2^{1197126529408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1197126529408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236677977800).

1197126529408 is an abundant number, since it is smaller than the sum of its proper divisors (1276229426192).

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

1197126529408 is an equidigital number, since it uses as much as digits as its factorization.

1197126529408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812787 (or 812775 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 55.

The spelling of 1197126529408 in words is "one trillion, one hundred ninety-seven billion, one hundred twenty-six million, five hundred twenty-nine thousand, four hundred eight".