632879897765 has 8 divisors (see below), whose sum is σ = 763845796728. Its totient is φ = 503377305280.

The previous prime is 632879897761. The next prime is 632879897843. The reversal of 632879897765 is 567798978236.

632879897765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 269898952324 + 362980945441 = 519518^2 + 602479^2 .

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

It is not a de Polignac number, because 632879897765 - 2² = 632879897761 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 (632879897761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365825666 + ... + 365827395.

It is an arithmetic number, because the mean of its divisors is an integer number (95480724591).

Almost surely, 2^632879897765 is an apocalyptic number.

It is an amenable number.

632879897765 is a deficient number, since it is larger than the sum of its proper divisors (130965898963).

632879897765 is a wasteful number, since it uses less digits than its factorization.

632879897765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731653239.

The product of its digits is 1920360960, while the sum is 77.

The spelling of 632879897765 in words is "six hundred thirty-two billion, eight hundred seventy-nine million, eight hundred ninety-seven thousand, seven hundred sixty-five".