1984141974490 has 32 divisors (see below), whose sum is σ = 3950133803280. Its totient is φ = 712806096384.

The previous prime is 1984141974443. The next prime is 1984141974511. The reversal of 1984141974490 is 944791414891.

It can be written as a sum of positive squares in 8 ways, for example, as 1022034055849 + 962107918641 = 1010957^2 + 980871^2 .

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, 206246955 + ... + 206256574.

Almost surely, 2^{1984141974490} is an apocalyptic number.

1984141974490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1984141974490 is a deficient number, since it is larger than the sum of its proper divisors (1965991828790).

1984141974490 is a wasteful number, since it uses less digits than its factorization.

1984141974490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412503586.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 1984141974490 in words is "one trillion, nine hundred eighty-four billion, one hundred forty-one million, nine hundred seventy-four thousand, four hundred ninety".