1173397337880 has 128 divisors (see below), whose sum is σ = 3678806661120. Its totient is φ = 298848084480.

The previous prime is 1173397337867. The next prime is 1173397337881. The reversal of 1173397337880 is 887337933711.

It is a super-2 number, since 2×1173397337880² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173397337881) 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, 1502769 + ... + 2145951.

It is an arithmetic number, because the mean of its divisors is an integer number (28740677040).

Almost surely, 2^{1173397337880} is an apocalyptic number.

1173397337880 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 1173397337880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839403330560).

1173397337880 is an abundant number, since it is smaller than the sum of its proper divisors (2505409323240).

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

1173397337880 is a wasteful number, since it uses less digits than its factorization.

1173397337880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643881 (or 643877 counting only the distinct ones).

The product of its (nonzero) digits is 16003008, while the sum is 60.

The spelling of 1173397337880 in words is "one trillion, one hundred seventy-three billion, three hundred ninety-seven million, three hundred thirty-seven thousand, eight hundred eighty".