1984280289061 has 32 divisors (see below), whose sum is σ = 2367460182528. Its totient is φ = 1627629020160.

The previous prime is 1984280289059. The next prime is 1984280289181. The reversal of 1984280289061 is 1609820824891.

It is a cyclic number.

It is not a de Polignac number, because 1984280289061 - 2¹ = 1984280289059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1984280288987 and 1984280289005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984280289001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75083496 + ... + 75109918.

It is an arithmetic number, because the mean of its divisors is an integer number (73983130704).

Almost surely, 2^{1984280289061} is an apocalyptic number.

It is an amenable number.

1984280289061 is a deficient number, since it is larger than the sum of its proper divisors (383179893467).

1984280289061 is a wasteful number, since it uses less digits than its factorization.

1984280289061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31461.

The product of its (nonzero) digits is 3981312, while the sum is 58.

The spelling of 1984280289061 in words is "one trillion, nine hundred eighty-four billion, two hundred eighty million, two hundred eighty-nine thousand, sixty-one".