65678831752 has 32 divisors (see below), whose sum is σ = 128861729280. Its totient is φ = 31344727680.

The previous prime is 65678831741. The next prime is 65678831767. The reversal of 65678831752 is 25713887656.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1795828 + ... + 1832035.

It is an arithmetic number, because the mean of its divisors is an integer number (4026929040).

Almost surely, 2^65678831752 is an apocalyptic number.

65678831752 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

65678831752 is a deficient number, since it is larger than the sum of its proper divisors (63182897528).

65678831752 is a wasteful number, since it uses less digits than its factorization.

65678831752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627973 (or 3627969 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 58.

The spelling of 65678831752 in words is "sixty-five billion, six hundred seventy-eight million, eight hundred thirty-one thousand, seven hundred fifty-two".