1957315717 has 16 divisors (see below), whose sum is σ = 2274220800. Its totient is φ = 1649854080.

The previous prime is 1957315699. The next prime is 1957315721. The reversal of 1957315717 is 7175137591.

It is not a de Polignac number, because 1957315717 - 2¹⁵ = 1957282949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957312717) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 198459 + ... + 208087.

It is an arithmetic number, because the mean of its divisors is an integer number (142138800).

Almost surely, 2^1957315717 is an apocalyptic number.

It is an amenable number.

1957315717 is a deficient number, since it is larger than the sum of its proper divisors (316905083).

1957315717 is an equidigital number, since it uses as much as digits as its factorization.

1957315717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10116.

The product of its digits is 231525, while the sum is 46.

The square root of 1957315717 is about 44241.5609692967. The cubic root of 1957315717 is about 1250.8933809709.

The spelling of 1957315717 in words is "one billion, nine hundred fifty-seven million, three hundred fifteen thousand, seven hundred seventeen".