3957696851 has 8 divisors (see below), whose sum is σ = 3990154080. Its totient is φ = 3925372032.

The previous prime is 3957696833. The next prime is 3957696889. The reversal of 3957696851 is 1586967593.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3957696851 is a prime.

It is a super-3 number, since 3×3957696851³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3957696551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27371 + ... + 93083.

It is an arithmetic number, because the mean of its divisors is an integer number (498769260).

Almost surely, 2^3957696851 is an apocalyptic number.

3957696851 is a deficient number, since it is larger than the sum of its proper divisors (32457229).

3957696851 is a wasteful number, since it uses less digits than its factorization.

3957696851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66205.

The product of its digits is 12247200, while the sum is 59.

The square root of 3957696851 is about 62910.2285085661. The cubic root of 3957696851 is about 1581.7852025818.

The spelling of 3957696851 in words is "three billion, nine hundred fifty-seven million, six hundred ninety-six thousand, eight hundred fifty-one".