631760611241 has 4 divisors (see below), whose sum is σ = 631800766800. Its totient is φ = 631720455684.

The previous prime is 631760611219. The next prime is 631760611247. The reversal of 631760611241 is 142116067136.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-631760611241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 631760611195 and 631760611204.

It is not an unprimeable number, because it can be changed into a prime (631760611247) 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, 20054171 + ... + 20085648.

It is an arithmetic number, because the mean of its divisors is an integer number (157950191700).

Almost surely, 2^631760611241 is an apocalyptic number.

It is an amenable number.

631760611241 is a deficient number, since it is larger than the sum of its proper divisors (40155559).

631760611241 is a wasteful number, since it uses less digits than its factorization.

631760611241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40155558.

The product of its (nonzero) digits is 36288, while the sum is 38.

Adding to 631760611241 its reverse (142116067136), we get a palindrome (773876678377).

The spelling of 631760611241 in words is "six hundred thirty-one billion, seven hundred sixty million, six hundred eleven thousand, two hundred forty-one".