1984101722040 has 64 divisors (see below), whose sum is σ = 6157557079200. Its totient is φ = 510849178112.

The previous prime is 1984101722039. The next prime is 1984101722063. The reversal of 1984101722040 is 402271014891.

It is a self number, because there is not a number n which added to its sum of digits gives 1984101722040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285068607 + ... + 285075566.

Almost surely, 2^{1984101722040} is an apocalyptic number.

1984101722040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1984101722040 is an abundant number, since it is smaller than the sum of its proper divisors (4173455357160).

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

1984101722040 is a wasteful number, since it uses less digits than its factorization.

1984101722040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570144216 (or 570144212 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 1984101722040 in words is "one trillion, nine hundred eighty-four billion, one hundred one million, seven hundred twenty-two thousand, forty".