11481631767 has 8 divisors (see below), whose sum is σ = 17009824880. Its totient is φ = 7654421160.

The previous prime is 11481631729. The next prime is 11481631781. The reversal of 11481631767 is 76713618411.

It is a happy number.

11481631767 is a `hidden beast` number, since 1 + 1 + 4 + 8 + 1 + 631 + 7 + 6 + 7 = 666.

It is not a de Polignac number, because 11481631767 - 2⁶ = 11481631703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11481631867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212622784 + ... + 212622837.

It is an arithmetic number, because the mean of its divisors is an integer number (2126228110).

Almost surely, 2^11481631767 is an apocalyptic number.

11481631767 is a deficient number, since it is larger than the sum of its proper divisors (5528193113).

11481631767 is an equidigital number, since it uses as much as digits as its factorization.

11481631767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425245630 (or 425245624 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The spelling of 11481631767 in words is "eleven billion, four hundred eighty-one million, six hundred thirty-one thousand, seven hundred sixty-seven".