1129420800000 has 1440 divisors, whose sum is σ = 4505174150400. Its totient is φ = 278691840000.

The previous prime is 1129420799951. The next prime is 1129420800031. The reversal of 1129420800000 is 80249211.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26265599979 + ... + 26265600021.

It is an arithmetic number, because the mean of its divisors is an integer number (3128593160).

Almost surely, 2^{1129420800000} is an apocalyptic number.

1129420800000 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 1129420800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2252587075200).

1129420800000 is an abundant number, since it is smaller than the sum of its proper divisors (3375753350400).

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

1129420800000 is an frugal number, since it uses more digits than its factorization.

1129420800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 1129420800000 in words is "one trillion, one hundred twenty-nine billion, four hundred twenty million, eight hundred thousand".