1147002805872 has 1440 divisors, whose sum is σ = 4379853004800. Its totient is φ = 279417600000.

The previous prime is 1147002805829. The next prime is 1147002805877. The reversal of 1147002805872 is 2785082007411.

1147002805872 is a `hidden beast` number, since 1 + 1 + 47 + 0 + 0 + 28 + 0 + 587 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1147002805877) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 7596044997 + ... + 7596045147.

Almost surely, 2^{1147002805872} is an apocalyptic number.

1147002805872 is a gapful number since it is divisible by the number (12) 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 1147002805872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2189926502400).

1147002805872 is an abundant number, since it is smaller than the sum of its proper divisors (3232850198928).

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

1147002805872 is a wasteful number, since it uses less digits than its factorization.

1147002805872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The spelling of 1147002805872 in words is "one trillion, one hundred forty-seven billion, two million, eight hundred five thousand, eight hundred seventy-two".