11478364631 has 2 divisors, whose sum is σ = 11478364632. Its totient is φ = 11478364630.

The previous prime is 11478364603. The next prime is 11478364643. The reversal of 11478364631 is 13646387411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11478364631 - 2¹⁴ = 11478348247 is a prime.

It is a super-2 number, since 2×11478364631² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11478364031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5739182315 + 5739182316.

It is an arithmetic number, because the mean of its divisors is an integer number (5739182316).

Almost surely, 2^11478364631 is an apocalyptic number.

11478364631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11478364631 is an equidigital number, since it uses as much as digits as its factorization.

11478364631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 44.

The spelling of 11478364631 in words is "eleven billion, four hundred seventy-eight million, three hundred sixty-four thousand, six hundred thirty-one".