1147929281272 has 8 divisors (see below), whose sum is σ = 2152367402400. Its totient is φ = 573964640632.

The previous prime is 1147929281269. The next prime is 1147929281281. The reversal of 1147929281272 is 2721829297411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71745580072 + ... + 71745580087.

It is an arithmetic number, because the mean of its divisors is an integer number (269045925300).

Almost surely, 2^{1147929281272} is an apocalyptic number.

It is an amenable number.

1147929281272 is a deficient number, since it is larger than the sum of its proper divisors (1004438121128).

1147929281272 is a wasteful number, since it uses less digits than its factorization.

1147929281272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143491160165 (or 143491160161 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The spelling of 1147929281272 in words is "one trillion, one hundred forty-seven billion, nine hundred twenty-nine million, two hundred eighty-one thousand, two hundred seventy-two".