1957316816 has 40 divisors (see below), whose sum is σ = 4667451264. Its totient is φ = 774322560.

The previous prime is 1957316791. The next prime is 1957316827. The reversal of 1957316816 is 6186137591.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670700 + ... + 673611.

Almost surely, 2^1957316816 is an apocalyptic number.

1957316816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1957316816 is an abundant number, since it is smaller than the sum of its proper divisors (2710134448).

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

1957316816 is a wasteful number, since it uses less digits than its factorization.

1957316816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344339 (or 1344333 counting only the distinct ones).

The product of its digits is 272160, while the sum is 47.

The square root of 1957316816 is about 44241.5733897428. The cubic root of 1957316816 is about 1250.8936150894.

The spelling of 1957316816 in words is "one billion, nine hundred fifty-seven million, three hundred sixteen thousand, eight hundred sixteen".