1871413056016 has 45 divisors (see below), whose sum is σ = 4217926727469. Its totient is φ = 802017750912.

The previous prime is 1871413056013. The next prime is 1871413056041. The reversal of 1871413056016 is 6106503141781.

It is a happy number.

The square root of 1871413056016 is 1367996.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1868962410000 + 2450646016 = 1367100^2 + 49504^2 .

It is not an unprimeable number, because it can be changed into a prime (1871413056011) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38279460 + ... + 38328316.

Almost surely, 2^{1871413056016} is an apocalyptic number.

1871413056016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1871413056016 is the 1367996-th square number.

It is an amenable number.

1871413056016 is an abundant number, since it is smaller than the sum of its proper divisors (2346513671453).

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

1871413056016 is an frugal number, since it uses more digits than its factorization.

1871413056016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97736 (or 48866 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 43.

Adding to 1871413056016 its reverse (6106503141781), we get a palindrome (7977916197797).

The spelling of 1871413056016 in words is "one trillion, eight hundred seventy-one billion, four hundred thirteen million, fifty-six thousand, sixteen".