2981122547328 has 48 divisors (see below), whose sum is σ = 8578490666850. Its totient is φ = 993707515392.

The previous prime is 2981122547323. The next prime is 2981122547329. The reversal of 2981122547328 is 8237452211892.

It is a happy number.

2981122547328 is a `hidden beast` number, since 2 + 9 + 81 + 12 + 2 + 547 + 3 + 2 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2046250142784 + 934872404544 = 1430472^2 + 966888^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (2981122547323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1293888843 + ... + 1293891146.

Almost surely, 2^{2981122547328} is an apocalyptic number.

It is an amenable number.

2981122547328 is an abundant number, since it is smaller than the sum of its proper divisors (5597368119522).

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

2981122547328 is a wasteful number, since it uses less digits than its factorization.

2981122547328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2587780009 (or 2587779994 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 2981122547328 in words is "two trillion, nine hundred eighty-one billion, one hundred twenty-two million, five hundred forty-seven thousand, three hundred twenty-eight".