10856091459 has 4 divisors (see below), whose sum is σ = 14474788616. Its totient is φ = 7237394304.

The previous prime is 10856091451. The next prime is 10856091461. The reversal of 10856091459 is 95419065801.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10856091459 - 2³ = 10856091451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10856091451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809348574 + ... + 1809348579.

It is an arithmetic number, because the mean of its divisors is an integer number (3618697154).

Almost surely, 2^10856091459 is an apocalyptic number.

10856091459 is a deficient number, since it is larger than the sum of its proper divisors (3618697157).

10856091459 is an equidigital number, since it uses as much as digits as its factorization.

10856091459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618697156.

The product of its (nonzero) digits is 388800, while the sum is 48.

The spelling of 10856091459 in words is "ten billion, eight hundred fifty-six million, ninety-one thousand, four hundred fifty-nine".