632407947478 has 8 divisors (see below), whose sum is σ = 948618425160. Its totient is φ = 316201805760.

The previous prime is 632407947473. The next prime is 632407947481. The reversal of 632407947478 is 874749704236.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632407947473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690843 + ... + 1319878.

It is an arithmetic number, because the mean of its divisors is an integer number (118577303145).

Almost surely, 2^632407947478 is an apocalyptic number.

632407947478 is a deficient number, since it is larger than the sum of its proper divisors (316210477682).

632407947478 is a wasteful number, since it uses less digits than its factorization.

632407947478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167982.

The product of its (nonzero) digits is 56899584, while the sum is 61.

The spelling of 632407947478 in words is "six hundred thirty-two billion, four hundred seven million, nine hundred forty-seven thousand, four hundred seventy-eight".