1177231257840 has 480 divisors, whose sum is σ = 4273013009664. Its totient is φ = 265815982080.

The previous prime is 1177231257827. The next prime is 1177231257841. The reversal of 1177231257840 is 487521327711.

It is a super-2 number, since 2×1177231257840² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1177231257840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1177231257841) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 73999167 + ... + 74015073.

Almost surely, 2^{1177231257840} is an apocalyptic number.

1177231257840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1177231257840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2136506504832).

1177231257840 is an abundant number, since it is smaller than the sum of its proper divisors (3095781751824).

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

1177231257840 is a wasteful number, since it uses less digits than its factorization.

1177231257840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16065 (or 16042 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 48.

The spelling of 1177231257840 in words is "one trillion, one hundred seventy-seven billion, two hundred thirty-one million, two hundred fifty-seven thousand, eight hundred forty".