11585406949 has 2 divisors, whose sum is σ = 11585406950. Its totient is φ = 11585406948.

The previous prime is 11585406901. The next prime is 11585406961. The reversal of 11585406949 is 94960458511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6826890625 + 4758516324 = 82625^2 + 68982^2 .

It is a cyclic number.

It is not a de Polignac number, because 11585406949 - 2²⁵ = 11551852517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11585406896 and 11585406905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11585400949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5792703474 + 5792703475.

It is an arithmetic number, because the mean of its divisors is an integer number (5792703475).

Almost surely, 2^11585406949 is an apocalyptic number.

It is an amenable number.

11585406949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11585406949 is an equidigital number, since it uses as much as digits as its factorization.

11585406949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 52.

The spelling of 11585406949 in words is "eleven billion, five hundred eighty-five million, four hundred six thousand, nine hundred forty-nine".