1147275964944 has 240 divisors, whose sum is σ = 3356832720384. Its totient is φ = 365420160000.

The previous prime is 1147275964867. The next prime is 1147275964979. The reversal of 1147275964944 is 4494695727411.

It is a happy number.

1147275964944 is a `hidden beast` number, since 1 + 1 + 4 + 72 + 75 + 9 + 6 + 494 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241478569 + ... + 241483319.

Almost surely, 2^{1147275964944} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1147275964944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1678416360192).

1147275964944 is an abundant number, since it is smaller than the sum of its proper divisors (2209556755440).

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

1147275964944 is a wasteful number, since it uses less digits than its factorization.

1147275964944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5606 (or 5597 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 1147275964944 in words is "one trillion, one hundred forty-seven billion, two hundred seventy-five million, nine hundred sixty-four thousand, nine hundred forty-four".