1957227378682 has 8 divisors (see below), whose sum is σ = 2935850590836. Its totient is φ = 978610515072.

The previous prime is 1957227378593. The next prime is 1957227378683. The reversal of 1957227378682 is 2868737227591.

It can be written as a sum of positive squares in 2 ways, for example, as 1214578122241 + 742649256441 = 1102079^2 + 861771^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1957227378683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722103 + ... + 2106154.

Almost surely, 2^{1957227378682} is an apocalyptic number.

1957227378682 is a deficient number, since it is larger than the sum of its proper divisors (978623212154).

1957227378682 is a wasteful number, since it uses less digits than its factorization.

1957227378682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174272.

The product of its digits is 142248960, while the sum is 67.

The spelling of 1957227378682 in words is "one trillion, nine hundred fifty-seven billion, two hundred twenty-seven million, three hundred seventy-eight thousand, six hundred eighty-two".