631796569011 has 6 divisors (see below), whose sum is σ = 912595044140. Its totient is φ = 421197712668.

The previous prime is 631796568937. The next prime is 631796569031. The reversal of 631796569011 is 110965697136.

It is a happy number.

631796569011 is a `hidden beast` number, since 6 + 3 + 1 + 79 + 6 + 569 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 631796569011 - 2¹³ = 631796560819 is a prime.

It is a super-2 number, since 2×631796569011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (631796569031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35099809381 + ... + 35099809398.

Almost surely, 2^631796569011 is an apocalyptic number.

631796569011 is a deficient number, since it is larger than the sum of its proper divisors (280798475129).

631796569011 is a wasteful number, since it uses less digits than its factorization.

631796569011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70199618785 (or 70199618782 counting only the distinct ones).

The product of its (nonzero) digits is 1837080, while the sum is 54.

The spelling of 631796569011 in words is "six hundred thirty-one billion, seven hundred ninety-six million, five hundred sixty-nine thousand, eleven".