631989703662 has 8 divisors (see below), whose sum is σ = 1263979407336. Its totient is φ = 210663234552.

The previous prime is 631989703613. The next prime is 631989703663. The reversal of 631989703662 is 266307989136.

631989703662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

631989703662 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 631989703596 and 631989703605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631989703663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52665808633 + ... + 52665808644.

It is an arithmetic number, because the mean of its divisors is an integer number (157997425917).

Almost surely, 2^631989703662 is an apocalyptic number.

631989703662 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631989703662 is a wasteful number, since it uses less digits than its factorization.

631989703662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105331617282.

The product of its (nonzero) digits is 17635968, while the sum is 60.

The spelling of 631989703662 in words is "six hundred thirty-one billion, nine hundred eighty-nine million, seven hundred three thousand, six hundred sixty-two".