677965851 has 12 divisors (see below), whose sum is σ = 981253000. Its totient is φ = 451068480.

The previous prime is 677965843. The next prime is 677965859. The reversal of 677965851 is 158569776.

It is an interprime number because it is at equal distance from previous prime (677965843) and next prime (677965859).

It is not a de Polignac number, because 677965851 - 2³ = 677965843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677965859) 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 11 ways as a sum of consecutive naturals, for example, 70990 + ... + 79971.

Almost surely, 2^677965851 is an apocalyptic number.

677965851 is a deficient number, since it is larger than the sum of its proper divisors (303287149).

677965851 is a wasteful number, since it uses less digits than its factorization.

677965851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151466 (or 151463 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 677965851 is about 26037.7773821039. Note that the first 3 decimals coincide. The cubic root of 677965851 is about 878.4882148546.

The spelling of 677965851 in words is "six hundred seventy-seven million, nine hundred sixty-five thousand, eight hundred fifty-one".