1942681988520 has 1536 divisors, whose sum is σ = 8385508454400. Its totient is φ = 389469358080.

The previous prime is 1942681988503. The next prime is 1942681988543. The reversal of 1942681988520 is 258891862491.

1942681988520 is a `hidden beast` number, since 1 + 9 + 4 + 26 + 8 + 1 + 9 + 88 + 520 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 6327954207 + ... + 6327954513.

It is an arithmetic number, because the mean of its divisors is an integer number (5459315400).

Almost surely, 2^{1942681988520} is an apocalyptic number.

1942681988520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1942681988520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4192754227200).

1942681988520 is an abundant number, since it is smaller than the sum of its proper divisors (6442826465880).

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

1942681988520 is a wasteful number, since it uses less digits than its factorization.

1942681988520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 63.

The spelling of 1942681988520 in words is "one trillion, nine hundred forty-two billion, six hundred eighty-one million, nine hundred eighty-eight thousand, five hundred twenty".