1916852557329 has 12 divisors (see below), whose sum is σ = 2773757926836. Its totient is φ = 1275607443552.

The previous prime is 1916852557283. The next prime is 1916852557331. The reversal of 1916852557329 is 9237552586191.

1916852557329 is a `hidden beast` number, since 1 + 9 + 1 + 6 + 8 + 52 + 5 + 573 + 2 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 133826467329 + 1783026090000 = 365823^2 + 1335300^2 .

It is not a de Polignac number, because 1916852557329 - 2²³ = 1916844168721 is a prime.

It is a super-2 number, since 2×1916852557329² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1916852557339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191183154 + ... + 191193179.

It is an arithmetic number, because the mean of its divisors is an integer number (231146493903).

Almost surely, 2^{1916852557329} is an apocalyptic number.

It is an amenable number.

1916852557329 is a deficient number, since it is larger than the sum of its proper divisors (856905369507).

1916852557329 is a wasteful number, since it uses less digits than its factorization.

1916852557329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382376896 (or 382376893 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 63.

The spelling of 1916852557329 in words is "one trillion, nine hundred sixteen billion, eight hundred fifty-two million, five hundred fifty-seven thousand, three hundred twenty-nine".