10958391657 has 6 divisors (see below), whose sum is σ = 15828787962. Its totient is φ = 7305594432.

The previous prime is 10958391649. The next prime is 10958391659. The reversal of 10958391657 is 75619385901.

10958391657 is a `hidden beast` number, since 1 + 0 + 9 + 583 + 9 + 1 + 6 + 57 = 666.

10958391657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6748458201 + 4209933456 = 82149^2 + 64884^2 .

It is not a de Polignac number, because 10958391657 - 2³ = 10958391649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10958391659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 608799528 + ... + 608799545.

It is an arithmetic number, because the mean of its divisors is an integer number (2638131327).

Almost surely, 2^10958391657 is an apocalyptic number.

It is an amenable number.

10958391657 is a deficient number, since it is larger than the sum of its proper divisors (4870396305).

10958391657 is a wasteful number, since it uses less digits than its factorization.

10958391657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217599079 (or 1217599076 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 54.

The spelling of 10958391657 in words is "ten billion, nine hundred fifty-eight million, three hundred ninety-one thousand, six hundred fifty-seven".