631553171080142 has 8 divisors (see below), whose sum is σ = 1003055036421456. Its totient is φ = 297201492272992.

The previous prime is 631553171080141. The next prime is 631553171080157. The reversal of 631553171080142 is 241080171355136.

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 (631553171080141) 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, 9287546633498 + ... + 9287546633565.

It is an arithmetic number, because the mean of its divisors is an integer number (125381879552682).

Almost surely, 2^{631553171080142} is an apocalyptic number.

631553171080142 is a deficient number, since it is larger than the sum of its proper divisors (371501865341314).

631553171080142 is a wasteful number, since it uses less digits than its factorization.

631553171080142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18575093267082.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 631553171080142 in words is "six hundred thirty-one trillion, five hundred fifty-three billion, one hundred seventy-one million, eighty thousand, one hundred forty-two".