1768695957 has 24 divisors (see below), whose sum is σ = 2936082240. Its totient is φ = 1005030720.

The previous prime is 1768695953. The next prime is 1768695967. The reversal of 1768695957 is 7595968671.

It is not a de Polignac number, because 1768695957 - 2² = 1768695953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 1768695894 and 1768695903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1768695953) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67144 + ... + 89697.

It is an arithmetic number, because the mean of its divisors is an integer number (122336760).

Almost surely, 2^1768695957 is an apocalyptic number.

It is an amenable number.

1768695957 is a deficient number, since it is larger than the sum of its proper divisors (1167386283).

1768695957 is a wasteful number, since it uses less digits than its factorization.

1768695957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157033 (or 157030 counting only the distinct ones).

The product of its digits is 28576800, while the sum is 63.

The square root of 1768695957 is about 42055.8670936648. The cubic root of 1768695957 is about 1209.3473604083.

The spelling of 1768695957 in words is "one billion, seven hundred sixty-eight million, six hundred ninety-five thousand, nine hundred fifty-seven".