11631026506 has 12 divisors (see below), whose sum is σ = 19176775506. Its totient is φ = 5286830120.

The previous prime is 11631026471. The next prime is 11631026509. The reversal of 11631026506 is 60562013611.

It can be written as a sum of positive squares in only one way, i.e., 9724918225 + 1906108281 = 98615^2 + 43659^2 .

It is not an unprimeable number, because it can be changed into a prime (11631026509) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24030805 + ... + 24031288.

Almost surely, 2^11631026506 is an apocalyptic number.

11631026506 is a deficient number, since it is larger than the sum of its proper divisors (7545749000).

11631026506 is a wasteful number, since it uses less digits than its factorization.

11631026506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48062117 (or 48062106 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 11631026506 in words is "eleven billion, six hundred thirty-one million, twenty-six thousand, five hundred six".