141981784938 has 24 divisors (see below), whose sum is σ = 351573943968. Its totient is φ = 40566224232.

The previous prime is 141981784897. The next prime is 141981784939. The reversal of 141981784938 is 839487189141.

141981784938 is a `hidden beast` number, since 1 + 41 + 98 + 17 + 8 + 493 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (141981784939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 563419656 + ... + 563419907.

It is an arithmetic number, because the mean of its divisors is an integer number (14648914332).

Almost surely, 2^141981784938 is an apocalyptic number.

141981784938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

141981784938 is an abundant number, since it is smaller than the sum of its proper divisors (209592159030).

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

141981784938 is a wasteful number, since it uses less digits than its factorization.

141981784938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126839578 (or 1126839575 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 63.

The spelling of 141981784938 in words is "one hundred forty-one billion, nine hundred eighty-one million, seven hundred eighty-four thousand, nine hundred thirty-eight".