1984305930461 has 32 divisors (see below), whose sum is σ = 2097418240512. Its totient is φ = 1875236247040.

The previous prime is 1984305930443. The next prime is 1984305930469. The reversal of 1984305930461 is 1640395034891.

It is a de Polignac number, because none of the positive numbers 2^k-1984305930461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1984305930469) 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, 372077951 + ... + 372083283.

It is an arithmetic number, because the mean of its divisors is an integer number (65544320016).

Almost surely, 2^{1984305930461} is an apocalyptic number.

It is an amenable number.

1984305930461 is a deficient number, since it is larger than the sum of its proper divisors (113112310051).

1984305930461 is a wasteful number, since it uses less digits than its factorization.

1984305930461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7573.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 1984305930461 in words is "one trillion, nine hundred eighty-four billion, three hundred five million, nine hundred thirty thousand, four hundred sixty-one".