1147121529840 has 1440 divisors, whose sum is σ = 4906373472000. Its totient is φ = 237306101760.

The previous prime is 1147121529839. The next prime is 1147121529877. The reversal of 1147121529840 is 489251217411.

It is a happy number.

1147121529840 is a `hidden beast` number, since 1 + 1 + 47 + 1 + 2 + 1 + 529 + 84 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 1093537636 + ... + 1093538684.

It is an arithmetic number, because the mean of its divisors is an integer number (3407203800).

Almost surely, 2^{1147121529840} is an apocalyptic number.

1147121529840 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 1147121529840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2453186736000).

1147121529840 is an abundant number, since it is smaller than the sum of its proper divisors (3759251942160).

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

1147121529840 is a wasteful number, since it uses less digits than its factorization.

1147121529840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167 (or 1145 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The spelling of 1147121529840 in words is "one trillion, one hundred forty-seven billion, one hundred twenty-one million, five hundred twenty-nine thousand, eight hundred forty".