11458657889 has 12 divisors (see below), whose sum is σ = 13346229204. Its totient is φ = 9809349984.

The previous prime is 11458657879. The next prime is 11458657897. The reversal of 11458657889 is 98875685411.

It can be written as a sum of positive squares in 2 ways, for example, as 8661094225 + 2797563664 = 93065^2 + 52892^2 .

It is not a de Polignac number, because 11458657889 - 2¹² = 11458653793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11458657879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107654 + ... + 185759.

It is an arithmetic number, because the mean of its divisors is an integer number (1112185767).

Almost surely, 2^11458657889 is an apocalyptic number.

It is an amenable number.

11458657889 is a deficient number, since it is larger than the sum of its proper divisors (1887571315).

11458657889 is an equidigital number, since it uses as much as digits as its factorization.

11458657889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294224 (or 294217 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 62.

The spelling of 11458657889 in words is "eleven billion, four hundred fifty-eight million, six hundred fifty-seven thousand, eight hundred eighty-nine".