10856091418 has 4 divisors (see below), whose sum is σ = 16284137130. Its totient is φ = 5428045708.

The previous prime is 10856091383. The next prime is 10856091419. The reversal of 10856091418 is 81419065801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81419065801 = 103 ⋅790476367.

It can be written as a sum of positive squares in only one way, i.e., 6736633929 + 4119457489 = 82077^2 + 64183^2 .

It is not an unprimeable number, because it can be changed into a prime (10856091419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2714022853 + ... + 2714022856.

Almost surely, 2^10856091418 is an apocalyptic number.

10856091418 is a deficient number, since it is larger than the sum of its proper divisors (5428045712).

10856091418 is an equidigital number, since it uses as much as digits as its factorization.

10856091418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5428045711.

The product of its (nonzero) digits is 69120, while the sum is 43.

The spelling of 10856091418 in words is "ten billion, eight hundred fifty-six million, ninety-one thousand, four hundred eighteen".